10/01/2026
đ 20 MustâHave Browser Extensions for Web Developers (2026)
Efficiency is everything debugging, optimizing, or juggling projects. These extensions streamline your workflow, automate the boring stuff, and make building great web experiences faster. Most are on Chrome and Firefox (notes where theyâre not). Save this post for later! đ
đ§° Tech Stack & Inspection
1) Wappalyzer â Instantly see any siteâs CMS, JS frameworks, analytics, and more. Great for competitor/tech research.
2) Web Developer â A classic toolbar: disable CSS/JS, test forms, inspect elements, and more in one place.
3) VisBug â Liveâedit spacing, type, and colors right on the page (no DevTools required).
4) LT Debug (Chrome) â Inspect/modify HTTP requests, headers, cookies, and storage for API debugging.
5) ModHeader â Add/remove/modify headers on the fly to test CORS, auth, and API behavior.
đ¨ Design & Content Helpers
6) ColorZilla â Eyedropper + color picker + gradient generator with HEX/RGB copy.
7) WhatFont â Hover to reveal font family, size, weight, and colorâinstantly.
8) Lorem Ipsum Generator â Oneâclick placeholder text with custom words/sentences/paragraphs.
9) Dark Reader â Smart dark mode for every site; tweak brightness/contrast to reduce eye strain.
10) Loom (Chrome; similar addâons exist for Firefox) â Record screen/cam for quick walkâthroughs, bug repros, and handoffs.
đ§Ē Forms, Data & JSON
11) Fake Filler â Autoâpopulate forms with smart dummy data (emails, numbers, multiâstep flows).
12) JSONView â Prettyâprint JSON responses with collapsible trees and syntax highlighting.
13) Check My Links (Chrome; similar addâons exist for Firefox) Rapidly finds broken/redirected links on any page.
âī¸ Performance, QA & Best Practices
14) Web Developer Checklist â Quick scan for SEO, performance, accessibility, and security gaps.
15) Window Resizer â Test responsive breakpoints via oneâclick browser sizes (mobile â desktop).
16) Marker.io â Capture & annotate screenshots; autoâcapture URL/OS/Browser; send to Jira/Trello/Asana/ClickUp.
17) IE Tab (Windows/Chrome) â Render with the IE engine for legacy app testing (IE7âIE11).
đ Dev News & SEOâFriendly Tools
18) Daily.dev â Your newâtab feed of top dev news, tutorials, and trendsâpersonalized.
19) Grepper â See community code snippets directly in Google results; save your own favorites.
20) Spider Free â Crawl pages like a bot to surface indexing issues, broken links, and missing meta.
How to get them
đ Open the Chrome Web Store or Firefox Addâons, and search the extension names above.
đĄ Tip: Create a separate âDevâ browser profile so these tools donât clutter your everyday browsing.
Final Thoughts
With the right toolkit, youâll spend less time on repetitive tasks and more on building exceptional experiences. Try a few today and watch your workflow level up.
If you found this helpful:
đ Like this post
đŦ Comment your favorite extension (or one I should add)
đ Share with your dev team
đ Save for your next project
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#2026