Best Chrome Extensions for Developers in 2026
Extensions We Actually Keep
Most developer Chrome extensions are bloat. Here’s the 12 we use daily — and why each earns its place.
The Essentials
1. uBlock Origin — Ad + Tracker Blocker
Blocks ads, trackers, and malware domains. Makes web testing cleaner and faster.
2. React Developer Tools
Inspect React component tree, props, and state. Essential if you work with React.
3. Vue.js DevTools
Same idea, for Vue. If you’re not using Vue, don’t install it.
4. WhatFont — Identify Fonts on Any Website
Click any text, see the exact font, size, weight. CSS debugging made easy.
5. Web Vitals — Measure Real User Performance
See Core Web Vitals for any page: LCP, FID, CLS. Real data, not estimates.
6. EditThisCookie — Better Cookie Management
View, edit, delete, and export cookies. Better than Chrome’s built-in DevTools panel.
API & Network
7. Talend API Tester — Postman Alternative
Free version is actually useful. Full REST client with history.
8. JSON Viewer — Format + Syntax Highlight JSON
Auto-formats JSON responses. Makes reading API output 10x faster.
CSS & Design
9. ColorZilla — Color Picker + Gradient Generator
Eyedropper any pixel on screen. Get hex, RGB, HSL values instantly.
10. Pesticide — Debug CSS Layout
Overlay that shows box borders on every element. Find layout issues in seconds.
Productivity
11. Vimium — Keyboard Navigation
j k to scroll, f to open links by key, o to search. Mouse-free browsing.
12. Tab Session Manager — Save and Restore Tab Groups
Never lose your research session. Save groups, restore on restart.
The Stack That Stays
| Extension | Why We Keep It |
|---|---|
| uBlock Origin | Faster, cleaner web |
| React DevTools | React debugging |
| WhatFont | CSS work |
| Web Vitals | Performance auditing |
| Talend API Tester | API testing |
| Pesticide | Layout debugging |
| Vimium | Navigation speed |
| Tab Session Manager | Research continuity |
The rest? Installed, rarely opened. Quality over quantity.