Kit

English · Español · Français · Deutsch · Português (Brasil) · 日本語 · 简体中文 · 繁體中文 · 한국어 · العربية

All 30 README languages

• English
• Español
• Français
• Deutsch
• Italiano
• Português (Brasil)
• Português (Portugal)
• Nederlands
• Dansk
• Svenska
• Norsk Bokmål
• Suomi
• Polski
• Čeština
• Magyar
• Română
• Ελληνικά
• Türkçe
• Русский
• Українська
• العربية
• עברית
• हिन्दी
• ไทย
• Tiếng Việt
• Bahasa Indonesia
• 日本語
• 한국어
• 简体中文
• 繁體中文

Everyday tools in your browser. Private by design.

Kit is a set of PDF, image, media, converter, and text tools that run on your device. Processing stays in the browser—nothing is uploaded to a Kit server.

Live site: https://trykit.pages.dev

About the author: https://t-g.pages.dev

What you get

A complete, polished toolkit: 65 tools, clear layout, light and dark appearance, a 30-language UI with a native picker, an installable PWA shell, and honest limits about what a browser can do.

Languages

The app interface and this GitHub README are available in 30 languages. Switch in Settings (or the header) with a native picker, or use the links at the top of this file. Translations live in docs/readme/. Included: English, Español, Français, Deutsch, Italiano, Português (Brasil / Portugal), Nederlands, Dansk, Svenska, Norsk Bokmål, Suomi, Polski, Čeština, Magyar, Română, Ελληνικά, Türkçe, Русский, Українська, العربية, עברית, हिन्दी, ไทย, Tiếng Việt, Bahasa Indonesia, 日本語, 한국어, 简体中文, and 繁體中文. Arabic and Hebrew use right-to-left layout. Privacy and Terms are localized where we have native legal text; other locales fall back to English. Old /zh/ app links still resolve to Simplified Chinese.

Tools

The home screen groups tools by job (PDF pages vs markup, developer inspect vs encode) instead of one flat dump.

PDF

• Merge, split, organize, page numbers
• Compress, lock/unlock, metadata, flatten
• Watermark, visual redact, typed signature stamp
• Extract text, PDF → images ZIP, images → PDF

Images

• Compress, resize, crop, rotate/flip, favicon pack
• Adjust, filters, image watermark
• Convert JPEG/PNG/WEBP, view/strip EXIF

Audio & Video

• Convert, trim with waveform, speed/volume, extract audio, clip → GIF
  (FFmpeg WASM; large files may be slow; limited codecs)

Data

• JSON / YAML / TOML / SQL, CSV ↔ JSON, XML ↔ JSON
• JSON → TypeScript interfaces
• Smart convert hub

Writing

• Markdown ↔ HTML, text diff, case convert, Lorem ipsum

Developer

• JWT decode, Unix timestamp, cron explainer, number base
• Hash (SHA/MD5), regex, color
• Base64, URL, HTML entities
• UUID, password generator, QR generate/read

Privacy

• Tools process data on your device
• History stores metadata only (not file contents)
• Preferences stay in local storage
• Privacy Policy · Terms of Use

Local development

Requirements: Node.js 22.13+ (see .nvmrc).

git clone https://github.com/TGthms/kit.git
cd kit
npm install
npm run dev

Open http://localhost:3000 — default locale redirects to /en/.

npm run build      # static export → out/
npm run typecheck
npm run lint

Base path

For GitHub project pages, build with:

NEXT_PUBLIC_BASE_PATH=/kit npm run build

Local default uses no base path (NEXT_PUBLIC_BASE_PATH empty).

Deploy to GitHub Pages

Automatic (recommended)

1. Push this repo to https://github.com/TGthms/kit
2. GitHub → Settings → Pages → Source: GitHub Actions
3. The workflow .github/workflows/deploy.yml builds with NEXT_PUBLIC_BASE_PATH=/kit and deploys the out/ folder

Manual

NEXT_PUBLIC_BASE_PATH=/kit npm run build
# Upload contents of out/ to your Pages target, or use actions/upload-pages-artifact

GitHub Pages URL: https://TGthms.github.io/kit/
Canonical live site: https://trykit.pages.dev

Tech stack

Next.js 15 (App Router, static export) · TypeScript · Tailwind CSS · shadcn-style UI · Zustand · next-intl · pdf-lib / PDF.js · Canvas · FFmpeg WASM · PWA service worker

License

MIT © Tim G (GitHub: TGthms)