modify
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37 300 results. Page 1 of 12.
Simple Modify headers
40,000
4.35 
(23)
(23)
Intercept & modify HTTP(S) traffic: redirect URLs, modify headers, inject scripts, mock REST & GraphQL APIs, and more.
300,000
4.47 (1,789)
(1,789)
Mock or modify your HTTP requests to test, develop and demo your web application
80,000
4.64 (237)
(237)
Add, modify or remove a header for any request on desired domains.
40,000
3.29 (55)
(55)
Intercept HTTP(S) Request, Modify Headers, Log headers, Change Response, Block Request, Redirect, Custom HTML/CSS/JS/JSON
5,000
3.94 (16)
(16)
Modify your Ajax response to test
629
4.00 (2)
(2)
Modify HTTP headers, block assets or domains & redirect requests. Organise rules by folder and tab, optionally scope to domains.
10,000
4.75 (16)
(16)
Customize any website with AI. Remove ads, change colors, transform elements - just describe it. No coding required.
79
5.00 (2)
(2)
Edit live webpages with a visual CSS editor, then copy exact changes as a structured prompt for terminal AI coding agents.
182
5.00 (1)
(1)
Manage HTTP request and response header modifications with a clean dashboard UI.
1,000
5.00 (5)
(5)
Intercept, mock, and modify API requests directly in your browser. No server needed. 100% local and secure.
431
5.00 (10)
(10)
Use Modify Cookie — a cookie editor, modifier, and manager to add, delete, search, and edit cookie data in-tab.
159
5.00 (2)
(2)
Intercept, edit, and run HTTP requests directly in your browser. No account needed.
982
5.00 (1)
(1)
Add, modify & delete HTTP request/response headers with URL & regex rules. Open-source, private, no data collection
6,000
4.86 (29)
(29)
Add or convert customize http headers when you are visiting website
374
0.00 (0)
(0)
AI-powered tab renaming for cleaner, smarter browsing.
6,000
4.43 (21)
(21)
DevTools Extension, Easy to Modify Request Header and Easy to Share the header configuration
68
0.00 (0)
(0)
A modern ModHeader alternative for modifying request headers and response headers with profiles, filters, tab targeting, and sync.
1,000
5.00 (1)
(1)
Edit the HTTP request and response headers of the sites you choose. No account, no telemetry, no debugger permission.
5
0.00 (0)
(0)
Create and manage custom HTTP request headers for selected websites or all websites.
4
0.00 (0)
(0)
Intercept, debug, modify header & response, replay HTTP requests. Comprehensive API client & cURL support in Chrome DevTools.
808
0.00 (0)
(0)
Intercepts and mocks HTTP requests with custom responses based on user-defined rules for free.
36
5.00 (2)
(2)
Modify pasted data
30
5.00 (1)
(1)
🛠️ Modify HTTP headers, redirect URLs & block requests. Provably local MV3 ModHeader alternative — no account, no telemetry.
237
0.00 (0)
(0)
Open-source tool to edit HTTP request headers per site, including iframe requests. Paste from Chrome DevTools.
21
0.00 (0)
(0)300 results. Page 1 of 12.