cspell
Spell checker for code that finds and fixes spelling errors in source files.
Linting and formatting npm MIT
Used in agent projects
27
0.2% of 12,697 public repos built with AI coding agents
Rank in linting and formatting
#28 of 40
by use in those projects
Downloads
1.5M
npm, last 7 days, cspell
GitHub stars
1,699
last push Oct 10, 2026
How cspell is used
cspell is a dependency in 27 of the 12,697 public GitHub projects set up for AI coding agents that we scanned (0.2%), #28 of 40 in linting and formatting. The most used alternative there is ESLint. Projects that use it most often also use Vitest (66.7%), Playwright (JavaScript) (59.3%), Husky (48.1%).
Often used with cspell
| Vitest | 66.7% of cspell projects · 5.5× more than average |
|---|---|
| Playwright (JavaScript) | 59.3% of cspell projects · 6.7× more than average |
| Husky | 48.1% of cspell projects · 7.7× more than average |
| lint-staged | 48.1% of cspell projects · 10.3× more than average |
| Testing Library | 37.0% of cspell projects · 5.1× more than average |
| jsdom | 37.0% of cspell projects · 6.9× more than average |
| Biome | 33.3% of cspell projects · 9.5× more than average |
| TypeScript | 85.2% of cspell projects · 1.5× more than average |
By coding agent
| Claude Code | 0.4% of projects set up for it |
|---|---|
| GitHub Copilot | 0.4% of projects set up for it |
| Cursor | 0.4% of projects set up for it |
| OpenAI Codex | 1.3% of projects set up for it |
Share of public repos configured for each agent that list cspell as a dependency.
Install
| Package | npm install cspell |
|---|---|
| Main stacks | TypeScript / JavaScript (15), Next.js (10), Go (1), Python (1) |
| Example projects | blockscout/frontend, samui-build/samui-wallet, microsoft/edge-ai, xmlking/spectacular, allbridge-io/allbridge-core-js-sdk |
Alternatives to cspell
| Tool | Used in agent projects | Downloads / wk | GitHub stars | License |
|---|---|---|---|---|
| ESLint npm Linter that finds and fixes JavaScript code patterns based on AST analysis. |
4,833 (38.1%) | 162M | 27.6K | MIT |
| Prettier npm Opinionated code formatter for JavaScript, TypeScript, and related languages. |
2,218 (17.5%) | 138M | 52.4K | MIT |
| Biome npm Fast web toolchain providing linting, formatting and code quality all in one. |
445 (3.5%) | 17.7M | 25.9K | MIT OR Apache-2.0 |
| oxlint npm Fast JavaScript linter written in Rust with zero-config defaults. |
206 (1.6%) | 25.7M | 23K | MIT |
| Knip npm Find and fix unused dependencies, exports and files in TypeScript/JavaScript projects. |
150 (1.2%) | 17.5M | 12.4K | ISC |
| stylelint npm Linter that finds and fixes CSS errors and enforces code style conventions. |
140 (1.1%) | 10.8M | 11.5K | MIT |
| oxfmt npm Fast JavaScript formatter from the Oxc compiler project. |
125 (1.0%) | 16.3M | 23K | MIT |
| ESLint Import Resolver TypeScript npm ESLint plugin resolver adding TypeScript support to import/export linting. |
119 (0.9%) | 48.8M | 825 | ISC |