type-fest
Collection of essential TypeScript utility types for common patterns.
Languages, types and runtimes npm (MIT OR CC0-1.0)
Used in agent projects
36
0.3% of 12,697 public repos built with AI coding agents
Rank in languages, types and runtimes
#11 of 18
by use in those projects
Downloads
387M
npm, last 7 days, type-fest
GitHub stars
17.4K
last push Sep 18, 2026
How type-fest is used
type-fest is a dependency in 36 of the 12,697 public GitHub projects set up for AI coding agents that we scanned (0.3%), #11 of 18 in languages, types and runtimes. The most used alternative there is TypeScript. Projects that use it most often also use Vitest (69.4%), tsx (55.6%), Zod (61.1%).
Often used with type-fest
| Vitest | 69.4% of type-fest projects · 5.7× more than average |
|---|---|
| tsx | 55.6% of type-fest projects · 5.6× more than average |
| Zod | 61.1% of type-fest projects · 3.6× more than average |
| semver | 47.2% of type-fest projects · 96.7× more than average |
| TypeScript | 97.2% of type-fest projects · 1.7× more than average |
| uuid | 36.1% of type-fest projects · 10.1× more than average |
| esbuild | 36.1% of type-fest projects · 13.4× more than average |
| Fuse.js | 33.3% of type-fest projects · 51.0× more than average |
By coding agent
| Claude Code | 0.8% of projects set up for it |
|---|---|
| GitHub Copilot | 0.5% of projects set up for it |
| Cursor | 0.6% of projects set up for it |
Share of public repos configured for each agent that list type-fest as a dependency.
Install
| Package | npm install type-fest |
|---|---|
| Main stacks | TypeScript / JavaScript (31), Next.js (3), PHP (1), Go (1) |
| Example projects | Hyk260/PureChat, mmkal/pgkit, bitrise-io/bitrise-workflow-editor, AmadeusITGroup/otter, juanfran/tapiz |
Alternatives to type-fest
| Tool | Used in agent projects | Downloads / wk | GitHub stars | License |
|---|---|---|---|---|
| TypeScript npm Language for application-scale JavaScript development with static type checking. |
7,092 (55.9%) | 305M | 111K | Apache-2.0 |
| tsx npm Node.js enhanced with esbuild to run TypeScript and ESM files. |
1,262 (9.9%) | 96.8M | 12.2K | MIT |
| ts-node npm TypeScript execution environment for Node.js with source map support. |
865 (6.8%) | 45.6M | 13.1K | MIT |
| vue-tsc npm TypeScript type checker for Vue.js single-file components. |
111 (0.9%) | 6.5M | 6,724 | MIT |
| tsconfig-paths npm Module resolution utility that loads Node.js modules according to TypeScript path mappings. |
86 (0.7%) | 113M | 1,908 | MIT |
| Cloudflare Workers Types npm TypeScript type definitions for Cloudflare Workers runtime. |
84 (0.7%) | 12.1M | 8,888 | MIT OR Apache-2.0 |
| jiti npm Runtime TypeScript and ESM support for Node.js without build steps. |
84 (0.7%) | 19M | 2,973 | MIT |
| CFFI pypi Foreign Function Interface for calling C code from Python. |
84 (0.7%) | 248M | 280 | — |