Your new tab
AyeTab takes over the new tab page — the full tool list on the left, the tool you picked on the right.
AyeTab
99 developer tools on every new tab — offline, instant, and private by design.
Core features
Everything you reach for, already open.
The utilities you open twenty times a day, waiting on every new tab — and in a side panel when you’d rather not leave the page you’re on.
Command palette
Hit ⌘K / Ctrl+K and fuzzy-jump to any tool. Feels like Raycast for developer utilities.
Smart paste
Paste a JWT, JSON blob, Base64 string, or URL — AyeTab suggests the right tool instantly.
Favorites & recents
Star what you live in and it pins to the top of the list.
Rich outputs
Syntax highlighting, diff view, markdown and HTML previews, QR codes, and image decode.
Keyboard-first
Press ? for shortcuts. Built for muscle memory, not mouse marathons.
99 tools
A full toolbox, one new tab.
From everyday formatters to JWT debugging and habit tracking — all processing stays on your device.
Format & Validate
JSON · HTML · CSS · JS · XML · SQL · SCSS · LESS · ERB
Encode & Decode
Base64 · Base64 Image · URL · HTML Entity · Backslash Escape
Data Converter
YAML↔JSON · JSON↔CSV · Query String↔JSON · cURL→Code · JSON→Code
Inspect & Debug
JWT · Unix Time · RegExp · Diff · Markdown · Cron · Certificate
Generators
Hash · UUID · ULID · Random String · Lorem · QR Code
Colour
Converter · Contrast · Palettes · Gradients · Blend · Eyedropper
Images & Assets
Resize · Crop · Compress · SVG→CSS · Favicons · Sprite sheets
Typography & Text
Case · Line Sort · Word Count · Ciphers · Shavian · Font tools
Productivity
To-Do · Kanban · Pomodoro · Notes · Stopwatch · Habits
Draw & Write runs in the web app — browser extension security rules block the library it needs, so the extension ships 99 of the 100 and links out to the rest.
Privacy by design
Your data never leaves the device.
Every transform runs locally in the browser. No accounts, no telemetry pipelines, no “upload to process.” Export and import your preferences as JSON when you want a backup.
Read the full privacy policy- Offline-capable Works without a network once installed.
- Local storage only Favorites, recents, and wallpaper stay on your machine.
- Open about permissions Side panel + storage — nothing more. Replacing the new tab needs no permission at all.
Get AyeTab
Install in a minute. Use forever offline.
Chrome or Firefox — the same new tab page, the same local toolkit, the same privacy model. Installing replaces your new tab; disable or remove AyeTab to put the default back.
Chrome
New tab page plus a persistent side panel. Install from the Chrome Web Store when the listing goes live, or unpack a local build while developing.
Listing coming soon
Chrome Web Store Firefox
New tab page plus a native sidebar action, with the same tool suite. Built for Firefox’s extension model.
Listing coming soon
Firefox Add-ons Web app
Prefer a full tab? Open the web suite with every tool available in the browser — same offline processing model.
Open AyeTab Web