tweak-extension.com · Developer Tools
6 items
Mock or modify HTTP requests, plus a developer toolbox for any page. Test, develop and demo your web app tl;dr tweak lets you mock and modify HTTP requests without leaving the browser, plus a developer toolbox for any page Mock 🆓 ﹥ Mock response data, headers, status code and delay ﹥ Match requests by their JSON or form (x-www-form-urlencoded) body ﹥ Capture requests in the background and turn them into rules ﹥ Document your rules with markdown labels and notes ﹥ Export and import rules to share them with your team, or import a HAR file Modify headers 🆓 ﹥ Add, override, append or remove request and response headers ﹥ Apply them on every tab, or only on the tab you're testing ﹥ Works on every request: pages, scripts, images and API calls ﹥ Dynamic header values with templating Redirect 🆓 ﹥ Send requests to another url, such as API calls to localhost ﹥ Replace documents such as HTML/CSS/Images Developer toolbox 🆓 ﹥ A bar of tools painted right on the page you're testing ﹥ Edit the page in place, outline every layout box, draw and label on it ﹥ Take the page offline or throttle it, and see what the site is built with ﹥ Screenshot the visible area, the full page or a dragged area Tweak Basic 💸 ﹥ Unlimited rules ﹥ Modify live server responses and request payloads ﹥ Organize your workspace with collections ﹥ Debug requests with breakpoints and logpoints ﹥ More toolbox tools: eraser, cookie and storage editor, redactor, page to Markdown, time zone override Tweak Max 💎 ﹥ Everything in Basic ﹥ Write custom JavaScript to change requests and responses ﹥ Pause a request and edit it before it is sent ﹥ Variables and environments: switch between dev, staging and prod in one click ﹥ Create mock data with random generators ﹥ The whole toolbox: preview a phone, tablet and laptop side by side and type into all of them at once Useful links 🔗 ﹥ Getting started https://tweak-extension.com/docs/intro ﹥ FAQs https://tweak-extension.com/faqs ﹥ Changelog https://tweak-extension.com/changelog ﹥ Support help@tweak-extension.com
Oct 22, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.