Automattic

Automattic/harper

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

8.7K stars 235 forks 8.7K watchers Rust Apache License 2.0
chrome-extension developer-tools english-language grammar-checker nodejs react rust svelte webassembly
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27 Open Issues Need Help Last updated: Dec 7, 2025

Open Issues Need Help

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Flag using "tenant" instead of "tenet". about 2 hours ago

AI Summary: This GitHub issue proposes implementing a flag or linter rule to identify instances where the word "tenant" is mistakenly used instead of "tenet," a common grammatical error. It provides multiple examples of this misuse and links to various grammar resources explaining the distinction between the two words. The issue also explicitly notes the likelihood of numerous false positives if such a check were implemented.

Complexity: 3/5
enhancement good first issue harper-core linting stale
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Flag mixing up "upcoming" and "up and coming" about 2 hours ago

AI Summary: This GitHub issue proposes flagging instances where the word "upcoming" is incorrectly used instead of "up and coming." "Upcoming" refers to something due in the near future, while "up and coming" describes something gaining prominence or potential. The goal is to identify and correct this common lexical confusion, often seen when referring to people, companies, or ideas with future potential.

Complexity: 4/5
enhancement good first issue harper-core linting
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Intellij Plugin 1 day ago
enhancement help wanted harper-ls
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Ignore spellcheking in a `typst` content block 3 days ago
enhancement good first issue
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Make the dialect indicator in the VS Code status bar clickable to change dialect 4 days ago
enhancement good first issue visual-studio-code-plugin
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
A non-greedy `RepeatingPattern` would be handy 4 days ago
enhancement good first issue harper-core linting stale
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Flag mixing up "suit" and "suite". 4 days ago
enhancement good first issue harper-core linting stale
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
In Google Chrome if I click on flagged text and hit escape to edit it manually, the cursor has been stolen 4 days ago
bug good first issue chrome-extension
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Flag "few" used when it should be "a few" 5 days ago
enhancement good first issue harper-core linting grammar
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Should flag "led rise to" meaning "gave rise to" etc. 5 days ago
enhancement good first issue harper-core linting grammar
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Hotkey improvements 5 days ago
enhancement good first issue stale
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
We should try to lay out some rigorous requirements for grammar feature requests and PRs 6 days ago
documentation help wanted question website stale
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Should have error for "in" in "I'm in the 3rd floor" 8 days ago
enhancement good first issue harper-core linting grammar
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Simple Harper PWA 18 days ago
enhancement good first issue stale
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Incorrect suggestions after applying fix for `WiFi -> Wi-Fi` 22 days ago
bug good first issue harper-core linting
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Flag "very much so" when the "so" doesn't refer back to something prior 23 days ago
enhancement good first issue harper-core linting grammar
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
feat: Flag "one of the" used with a singular object 24 days ago
enhancement good first issue harper-core linting
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Enable dark theme automatically for writewithharper.com about 1 month ago
good first issue website
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
correct rly to really about 2 months ago
enhancement good first issue
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Can you please add some spell check corrections? 2 months ago
good first issue spelling
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
`PunctuationClusters` flags `/.` in contexts where it's part of a file path to a dotfile 2 months ago
bug good first issue harper-core linting punctuation
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
false positive for phrase `that may be` 2 months ago
bug good first issue harper-core linting
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Flag "it looks like that" when "that" is a relative pronoun 3 months ago
enhancement good first issue harper-core linting grammar
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
harper-ls crash when using harper-typst 3 months ago

AI Summary: The `harper-ls` language server consistently crashes when editing Typst documents. The logs show repeated errors indicating that the `Settings` object is missing the expected `"harper-ls"` key, suggesting a configuration issue during server initialization or operation.

Complexity: 2/5
bug good first issue typst crash
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Typst content blocks are not isolated 3 months ago
bug good first issue typst
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
Won't remember my Rules on Firefox 3 months ago
bug good first issue firefox-plugin
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly
feat: Support for commonly used words/acronyms along with the base dictionary 3 months ago
enhancement good first issue harper-ls dictionary
Automattic/harper
8.7K

Offline, privacy-first grammar checker. Fast, open-source, Rust-powered

Rust
#chrome-extension#developer-tools#english-language#grammar-checker#nodejs#react#rust#svelte#webassembly