diff --git a/Cargo.lock b/Cargo.lock
index 24ece07..5e0d363 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -146,6 +146,15 @@ version = "2.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "bstr"
 version = "1.10.0"
@@ -258,7 +267,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
 ]
 
 [[package]]
@@ -305,29 +314,6 @@ dependencies = [
  "windows-sys 0.48.0",
 ]
 
-[[package]]
-name = "comemo"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df6916408a724339aa77b18214233355f3eb04c42eb895e5f8909215bd8a7a91"
-dependencies = [
- "comemo-macros",
- "once_cell",
- "parking_lot",
- "siphasher",
-]
-
-[[package]]
-name = "comemo-macros"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8936e42f9b4f5bdfaf23700609ac1f11cb03ad4c1ec128a4ee4fd0903e228db"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn 2.0.79",
-]
-
 [[package]]
 name = "core-foundation"
 version = "0.9.4"
@@ -344,6 +330,15 @@ version = "0.8.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "773648b94d0e5d620f64f280777445740e61fe701025087ec8b57f45c791888b"
 
+[[package]]
+name = "cpufeatures"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "16b80225097f2e5ae4e7179dd2266824648f3e2f49d9134d584b76389d31c4c3"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "criterion"
 version = "0.5.1"
@@ -411,12 +406,32 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a81dae078cea95a014a339291cec439d2f232ebe854a9d672b796c6afafa9b7"
 
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
 [[package]]
 name = "difflib"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6184e33543162437515c2e2b48714794e37845ec9851711914eec9d308f6ebe8"
 
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
 [[package]]
 name = "doc-comment"
 version = "0.3.3"
@@ -456,7 +471,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
 ]
 
 [[package]]
@@ -576,7 +591,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
 ]
 
 [[package]]
@@ -609,6 +624,16 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "generic-array"
+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
 [[package]]
 name = "getopts"
 version = "0.2.21"
@@ -677,6 +702,21 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fbf6a919d6cf397374f7dfeeea91d974c7c0a7221d0d0f4f20d859d329e53fcc"
 
+[[package]]
+name = "html_parser"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f56db07b6612644f6f7719f8ef944f75fff9d6378fdf3d316fd32194184abd"
+dependencies = [
+ "doc-comment",
+ "pest",
+ "pest_derive",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "thiserror 1.0.64",
+]
+
 [[package]]
 name = "http"
 version = "0.2.12"
@@ -827,6 +867,7 @@ dependencies = [
  "criterion",
  "enum_dispatch",
  "futures",
+ "html_parser",
  "is-terminal",
  "lifetime",
  "predicates",
@@ -836,7 +877,7 @@ dependencies = [
  "serde_json",
  "tempfile",
  "termcolor",
- "thiserror",
+ "thiserror 1.0.64",
  "tokio",
  "typst-syntax",
 ]
@@ -889,16 +930,6 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
-[[package]]
-name = "lock_api"
-version = "0.4.12"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07af8b9cdd281b7915f413fa73f29ebd5d55d0d3f0155584dade1ff18cea1b17"
-dependencies = [
- "autocfg",
- "scopeguard",
-]
-
 [[package]]
 name = "log"
 version = "0.4.22"
@@ -1014,7 +1045,7 @@ checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
 ]
 
 [[package]]
@@ -1046,33 +1077,55 @@ dependencies = [
 ]
 
 [[package]]
-name = "parking_lot"
-version = "0.12.3"
+name = "percent-encoding"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+
+[[package]]
+name = "pest"
+version = "2.7.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b7cafe60d6cf8e62e1b9b2ea516a089c008945bb5a275416789e7db0bc199dc"
+dependencies = [
+ "memchr",
+ "thiserror 2.0.8",
+ "ucd-trie",
+]
+
+[[package]]
+name = "pest_derive"
+version = "2.7.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1bf18183cf54e8d6059647fc3063646a1801cf30896933ec2311622cc4b9a27"
+checksum = "816518421cfc6887a0d62bf441b6ffb4536fcc926395a69e1a85852d4363f57e"
 dependencies = [
- "lock_api",
- "parking_lot_core",
+ "pest",
+ "pest_generator",
 ]
 
 [[package]]
-name = "parking_lot_core"
-version = "0.9.10"
+name = "pest_generator"
+version = "2.7.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e401f977ab385c9e4e3ab30627d6f26d00e2c73eef317493c4ec6d468726cf8"
+checksum = "7d1396fd3a870fc7838768d171b4616d5c91f6cc25e377b673d714567d99377b"
 dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "smallvec",
- "windows-targets 0.52.6",
+ "pest",
+ "pest_meta",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.90",
 ]
 
 [[package]]
-name = "percent-encoding"
-version = "2.3.1"
+name = "pest_meta"
+version = "2.7.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
+checksum = "e1e58089ea25d717bfd31fb534e4f3afcc2cc569c70de3e239778991ea3b7dea"
+dependencies = [
+ "once_cell",
+ "pest",
+ "sha2",
+]
 
 [[package]]
 name = "pin-project-lite"
@@ -1120,6 +1173,12 @@ dependencies = [
  "plotters-backend",
 ]
 
+[[package]]
+name = "portable-atomic"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "280dc24453071f1b63954171985a0b0d30058d287960968b9b2aca264c8d4ee6"
+
 [[package]]
 name = "predicates"
 version = "3.1.2"
@@ -1152,9 +1211,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.86"
+version = "1.0.92"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
+checksum = "37d3544b3f2748c54e147655edb5025752e2303145b5aefb3c3ea2c78b973bb0"
 dependencies = [
  "unicode-ident",
 ]
@@ -1207,15 +1266,6 @@ dependencies = [
  "crossbeam-utils",
 ]
 
-[[package]]
-name = "redox_syscall"
-version = "0.5.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "355ae415ccd3a04315d3f8246e86d67689ea74d88d915576e1589a351062a13b"
-dependencies = [
- "bitflags 2.6.0",
-]
-
 [[package]]
 name = "regex"
 version = "1.10.6"
@@ -1337,12 +1387,6 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
-[[package]]
-name = "scopeguard"
-version = "1.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
-
 [[package]]
 name = "security-framework"
 version = "2.11.1"
@@ -1383,7 +1427,7 @@ checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
 ]
 
 [[package]]
@@ -1398,6 +1442,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_spanned"
+version = "0.6.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87607cb1398ed59d48732e575a4c28a7a8ebf2454b964fe3f224f2afc07909e1"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "serde_urlencoded"
 version = "0.7.1"
@@ -1410,6 +1463,17 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.10.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
 [[package]]
 name = "shlex"
 version = "1.3.0"
@@ -1431,12 +1495,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "smallvec"
-version = "1.13.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
-
 [[package]]
 name = "socket2"
 version = "0.5.7"
@@ -1466,9 +1524,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.79"
+version = "2.0.90"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89132cd0bf050864e1d38dc3bbc07a0eb8e7530af26344d3d2bbbef83499f590"
+checksum = "919d3b74a5dd0ccd15aeb8f93e7006bd9e14c295087c9896a110f490752bcf31"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1540,13 +1598,28 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3369f5ac52d5eb6ab48c6b4ffdc8efbcad6b89c765749064ba298f2c68a16a76"
 
+[[package]]
+name = "thin-vec"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a38c90d48152c236a3ab59271da4f4ae63d678c5d7ad6b7714d7cb9760be5e4b"
+
 [[package]]
 name = "thiserror"
 version = "1.0.64"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d50af8abc119fb8bb6dbabcfa89656f46f84aa0ac7688088608076ad2b459a84"
 dependencies = [
- "thiserror-impl",
+ "thiserror-impl 1.0.64",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "08f5383f3e0071702bf93ab5ee99b52d26936be9dedd9413067cbdcddcb6141a"
+dependencies = [
+ "thiserror-impl 2.0.8",
 ]
 
 [[package]]
@@ -1557,7 +1630,18 @@ checksum = "08904e7672f5eb876eaaf87e0ce17857500934f4981c4a0ab2b4aa98baac7fc3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2f357fcec90b3caef6623a099691be676d033b40a058ac95d2a6ade6fa0c943"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.90",
 ]
 
 [[package]]
@@ -1609,7 +1693,7 @@ checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
 ]
 
 [[package]]
@@ -1635,6 +1719,40 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "toml"
+version = "0.8.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1ed1f98e3fdc28d6d910e6737ae6ab1a93bf1985935a1193e68f93eeb68d24e"
+dependencies = [
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "toml_edit",
+]
+
+[[package]]
+name = "toml_datetime"
+version = "0.6.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0dd7358ecb8fc2f8d014bf86f6f638ce72ba252a2c3a2572f2a795f1d23efb41"
+dependencies = [
+ "serde",
+]
+
+[[package]]
+name = "toml_edit"
+version = "0.22.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ae48d6208a266e853d946088ed816055e556cc6028c5e8e2b84d9fa5dd7c7f5"
+dependencies = [
+ "indexmap",
+ "serde",
+ "serde_spanned",
+ "toml_datetime",
+ "winnow",
+]
+
 [[package]]
 name = "tower-service"
 version = "0.3.3"
@@ -1666,16 +1784,23 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
 
+[[package]]
+name = "typenum"
+version = "1.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
+
 [[package]]
 name = "typst-syntax"
-version = "0.11.1"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3db69f2f41613b1ff6edbec44fd7dc524137f099ee36c46f560cedeaadb40c4"
+checksum = "05b7be8b6ed6b2cb39ca495947d548a28d7db0ba244008e44c5a759120327693"
 dependencies = [
- "comemo",
  "ecow",
  "once_cell",
  "serde",
+ "toml",
+ "typst-utils",
  "unicode-ident",
  "unicode-math-class",
  "unicode-script",
@@ -1683,6 +1808,25 @@ dependencies = [
  "unscanny",
 ]
 
+[[package]]
+name = "typst-utils"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f0305443ed97f0b658471487228f86bf835705e7525fbdcc671cebd864f7a40"
+dependencies = [
+ "once_cell",
+ "portable-atomic",
+ "rayon",
+ "siphasher",
+ "thin-vec",
+]
+
+[[package]]
+name = "ucd-trie"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2896d95c02a80c6d6a5d6e953d479f5ddf2dfdb6a244441010e373ac0fb88971"
+
 [[package]]
 name = "unicase"
 version = "2.7.0"
@@ -1828,7 +1972,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
  "wasm-bindgen-shared",
 ]
 
@@ -1862,7 +2006,7 @@ checksum = "afc340c74d9005395cf9dd098506f7f44e38f2b4a21c6aaacf9a105ea5e1e836"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.79",
+ "syn 2.0.90",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -2062,6 +2206,15 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
+[[package]]
+name = "winnow"
+version = "0.6.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36c1fec1a2bb5866f07c25f68c26e565c4c200aebb96d7e55710c19d3e8ac49b"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "winreg"
 version = "0.50.0"
diff --git a/Cargo.toml b/Cargo.toml
index f58857a..7b0a252 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,7 @@ annotate-snippets = {version = "^0.9.1", optional = true}
 clap = {version = "^4.5.18", features = ["cargo", "derive", "env", "wrap_help"], optional = true}
 clap_complete = {version = "^4.5.2", optional = true}
 enum_dispatch = {version = "0.3.13", optional = true}
+html_parser = {version = "0.7.0", optional = true}
 is-terminal = {version = "0.4.3", optional = true}
 lifetime = {version = "0.1.0", features = ["macros"]}
 pulldown-cmark = {version = "0.10.2", optional = true}
@@ -22,7 +23,7 @@ serde_json = "^1.0"
 termcolor = {version = "1.2.0", optional = true}
 thiserror = "^1.0"
 tokio = {version = "^1.0", features = ["macros", "rt-multi-thread"], optional = true}
-typst-syntax = {version = "^0.11.0", optional = true}
+typst-syntax = {version = "^0.12.0", optional = true}
 
 [dev-dependencies]
 assert_cmd = "2.0.11"
@@ -35,13 +36,14 @@ tokio = {version = "^1.0", features = ["macros"]}
 
 [features]
 annotate = ["dep:annotate-snippets"]
-cli = ["annotate", "color", "dep:clap", "dep:enum_dispatch", "dep:is-terminal", "multithreaded"]
+cli = ["annotate", "color", "dep:clap", "dep:enum_dispatch", "dep:is-terminal", "multithreaded", "typst", "markdown", "html"]
 cli-complete = ["cli", "clap_complete"]
 color = ["annotate-snippets?/color", "dep:termcolor"]
 default = ["cli", "native-tls"]
 docker = []
 full = ["cli-complete", "docker", "unstable"]
-markdown = ["dep:pulldown-cmark"]
+html = ["dep:html_parser"]
+markdown = ["dep:pulldown-cmark", "html"]
 multithreaded = ["dep:tokio"]
 native-tls = ["reqwest/native-tls"]
 native-tls-vendored = ["reqwest/native-tls-vendored"]
@@ -63,7 +65,7 @@ license = "MIT"
 name = "languagetool-rust"
 readme = "README.md"
 repository = "https://github.com/jeertmans/languagetool-rust"
-rust-version = "1.75.0"
+rust-version = "1.77.2"
 version = "2.1.4"
 
 [package.metadata.docs.rs]
diff --git a/src/cli/check.rs b/src/cli/check.rs
index f58773e..d3ea6aa 100644
--- a/src/cli/check.rs
+++ b/src/cli/check.rs
@@ -20,6 +20,7 @@ use crate::{
         server::ServerClient,
     },
     error::{Error, Result},
+    parsers::{parse_html, parse_markdown, parse_typst},
 };
 
 use super::ExecuteSubcommand;
@@ -74,8 +75,12 @@ pub enum FileType {
     /// Auto.
     #[default]
     Auto,
+    /// Raw text.
+    Raw,
     /// Markdown.
     Markdown,
+    /// HTML.
+    Html,
     /// Typst.
     Typst,
 }
@@ -119,21 +124,61 @@ impl ExecuteSubcommand for Command {
 
         // FILES
         for filename in self.filenames.iter() {
-            let text = std::fs::read_to_string(filename)?;
-            let requests = request
-                .clone()
-                .with_text(text)
-                .split(self.max_length, self.split_pattern.as_str());
-            let response = server_client.check_multiple_and_join(requests).await?;
+            let mut file_type = self.r#type.clone();
+
+            // If file type is "Auto", guess file type from extension
+            if matches!(self.r#type, FileType::Auto) {
+                file_type = match PathBuf::from(filename).extension().and_then(|e| e.to_str()) {
+                    Some(ext) => match ext {
+                        "typ" => FileType::Typst,
+                        "md" | "markdown" | "mdown" | "mdwn" | "mkd" | "mkdn" | "mdx" => {
+                            FileType::Markdown
+                        },
+
+                        "html" | "htm" => FileType::Html,
+                        _ => FileType::Raw,
+                    },
+                    None => FileType::Raw,
+                };
+            };
+
+            let file_content = std::fs::read_to_string(filename)?;
+            let (response, text): (check::Response, String) = match &file_type {
+                FileType::Auto => unreachable!(),
+                FileType::Raw => {
+                    let requests = (request.clone().with_text(&file_content))
+                        .split(self.max_length, self.split_pattern.as_str());
+                    let response = server_client.check_multiple_and_join(requests).await?;
+                    (response.into(), file_content)
+                },
+                FileType::Typst | FileType::Markdown | FileType::Html => {
+                    let data = match file_type {
+                        FileType::Typst => parse_typst(&file_content),
+                        FileType::Html => {
+                            let text = parse_html(&file_content);
+                            Data::from_iter([DataAnnotation::new_text(text)])
+                        },
+                        FileType::Markdown => {
+                            let text = parse_markdown(&file_content);
+                            Data::from_iter([DataAnnotation::new_text(text)])
+                        },
+                        _ => unreachable!(),
+                    };
+                    let response = server_client
+                        .check(&request.clone().with_data(data))
+                        .await?;
+                    (response, file_content)
+                },
+            };
 
             if !self.raw {
                 writeln!(
                     &mut stdout,
                     "{}",
-                    &response.annotate(response.text.as_ref(), filename.to_str(), color)
+                    &response.annotate(&text, filename.to_str(), color)
                 )?;
             } else {
-                writeln!(&mut stdout, "{}", serde_json::to_string_pretty(&*response)?)?;
+                writeln!(&mut stdout, "{}", serde_json::to_string_pretty(&response)?)?;
             }
         }
 
diff --git a/src/lib.rs b/src/lib.rs
index 4d8f386..a7cde7a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -21,3 +21,4 @@ pub mod api;
 #[cfg(feature = "cli")]
 pub mod cli;
 pub mod error;
+pub mod parsers;
diff --git a/src/parsers.rs b/src/parsers.rs
new file mode 100644
index 0000000..3907c2a
--- /dev/null
+++ b/src/parsers.rs
@@ -0,0 +1,210 @@
+//! Utilities for parsing the contents of different file types into a text
+//! representation that can be sent to the LanguageTool API.
+
+use crate::api::check::{Data, DataAnnotation};
+
+/// Parse the contents of an HTML file into a text format to be sent to the
+/// LanguageTool API.
+#[cfg(feature = "html")]
+pub fn parse_html(file_content: impl AsRef<str>) -> String {
+    use html_parser::Node;
+
+    let mut txt = String::new();
+
+    let html = html_parser::Dom::parse(file_content.as_ref()).unwrap_or_default();
+    let mut children: Vec<Node> = html.children.into_iter().rev().collect();
+
+    fn handle_node(txt: &mut String, node: Node) {
+        if let Some(e) = node.element() {
+            match e.name.as_str() {
+                "head" | "script" | "style" => {
+                    return;
+                },
+                "code" => {
+                    txt.push_str("_code_");
+                    return;
+                },
+                "a" => {
+                    txt.push_str("_link_");
+                    return;
+                },
+                "pre" => {
+                    txt.push_str("_pre_");
+                    txt.push_str("\n\n");
+                    return;
+                },
+                s => {
+                    let add_children = |txt: &mut String| {
+                        if !e.children.is_empty() {
+                            // Recursively handle children
+                            e.children.clone().into_iter().for_each(|n| {
+                                handle_node(txt, n);
+                            });
+                        };
+                    };
+
+                    match s {
+                        "p" | "h1" | "h2" | "h3" | "h4" | "h5" | "h6" | "li" | "td" | "th" => {
+                            while txt.chars().last().is_some_and(|c| c.is_whitespace()) {
+                                txt.pop();
+                            }
+                            txt.push_str("\n\n");
+                            add_children(txt);
+                            txt.push_str("\n\n");
+                        },
+                        _ => {
+                            add_children(txt);
+                        },
+                    }
+                },
+            }
+        }
+
+        if let Some(t) = node.text() {
+            let mut text = t.trim().to_owned();
+            if !text.is_empty() {
+                let mut chars = t.chars();
+
+                // Maintain leading/trailing white space, but only a single space
+                if chars.next().is_some_and(|c| c.is_whitespace()) {
+                    while txt.chars().last().is_some_and(|c| c.is_whitespace()) {
+                        txt.pop();
+                    }
+                    text.insert(0, ' ');
+                }
+                if chars.last().is_some_and(|c| c.is_whitespace()) {
+                    text.push(' ');
+                }
+
+                txt.push_str(&text);
+            }
+        }
+    }
+
+    while let Some(node) = children.pop() {
+        handle_node(&mut txt, node);
+    }
+
+    txt
+}
+
+/// Parse the contents of a Markdown file into a text format to be sent to the
+/// LanguageTool API.
+#[cfg(feature = "markdown")]
+pub fn parse_markdown(file_content: impl AsRef<str>) -> String {
+    use pulldown_cmark::{html, Options, Parser};
+
+    let mut options = Options::empty();
+    options.insert(Options::ENABLE_STRIKETHROUGH);
+    options.insert(Options::ENABLE_TABLES);
+
+    let parser = Parser::new_ext(file_content.as_ref(), options);
+    let mut html = String::new();
+    html::push_html(&mut html, parser);
+
+    parse_html(html)
+}
+
+/// Parse the contents of a Typst file into a text format to be sent to the
+/// LanguageTool API.
+#[cfg(feature = "typst")]
+pub fn parse_typst(file_content: impl AsRef<str>) -> Data<'static> {
+    use typst_syntax::{parse, SyntaxKind, SyntaxNode};
+
+    let mut annotations: Vec<DataAnnotation> = vec![];
+
+    let parent = parse(file_content.as_ref());
+    let mut nodes: Vec<&SyntaxNode> = parent.children().rev().collect();
+
+    while let Some(node) = nodes.pop() {
+        let kind = node.kind();
+
+        // MARKUP NODES
+        match kind {
+            // Pure markup
+            SyntaxKind::SetRule
+            | SyntaxKind::Ident
+            | SyntaxKind::ShowRule
+            | SyntaxKind::Raw
+            | SyntaxKind::Code
+            | SyntaxKind::CodeBlock
+            | SyntaxKind::Math
+            | SyntaxKind::Equation
+            | SyntaxKind::Ref
+            | SyntaxKind::LetBinding
+            | SyntaxKind::FieldAccess
+            | SyntaxKind::FuncCall
+            | SyntaxKind::Args => {
+                let mut markup = node.text().to_string();
+                if markup.is_empty() {
+                    let mut stack: Vec<&SyntaxNode> = node.children().rev().collect();
+                    while let Some(n) = stack.pop() {
+                        if n.text().is_empty() {
+                            stack.extend(n.children().rev());
+                        } else {
+                            markup += n.text();
+                        }
+                    }
+                }
+
+                annotations.push(DataAnnotation::new_interpreted_markup(
+                    markup,
+                    // This pattern is ignored by LanguageTool, and allows us to avoid whitespace issues.
+                    // The following sentence would give an error for repeated whitespace
+                    // otherwise: This has ``` `backticks` ``` in it
+                    "_ignore_".to_string(),
+                ));
+                continue;
+            },
+            // Markup with valid text interpretations
+            SyntaxKind::Heading
+            | SyntaxKind::Markup
+            | SyntaxKind::EnumItem
+            | SyntaxKind::ListItem
+            | SyntaxKind::Emph
+            | SyntaxKind::Strong => {
+                let (mut full_text, mut interpreted_as) = (String::new(), String::new());
+                let mut stack: Vec<&SyntaxNode> = node.children().rev().collect();
+
+                while let Some(n) = stack.pop() {
+                    if n.text().is_empty() {
+                        stack.extend(n.children().rev());
+                    } else {
+                        if matches!(n.kind(), SyntaxKind::Text | SyntaxKind::Space) {
+                            interpreted_as += n.text();
+                        }
+                        full_text += n.text();
+                    }
+                }
+
+                annotations.push(DataAnnotation::new_interpreted_markup(
+                    full_text,
+                    interpreted_as,
+                ));
+                continue;
+            },
+            _ => {},
+        }
+
+        // NESTED NODES
+        if node.children().count() > 0 && !matches!(kind, SyntaxKind::Args | SyntaxKind::FuncCall) {
+            nodes.extend(node.children().rev());
+            continue;
+        }
+
+        // TEXT
+        if matches!(
+            kind,
+            SyntaxKind::Text
+                | SyntaxKind::SmartQuote
+                | SyntaxKind::BlockComment
+                | SyntaxKind::LineComment
+                | SyntaxKind::Space
+                | SyntaxKind::Parbreak
+        ) {
+            annotations.push(DataAnnotation::new_text(node.text().to_string()));
+        };
+    }
+
+    Data::from_iter(annotations)
+}