Omnitool — Web Developer Multi-tool

The web developer multi-tool: header rules, screenshots, recorder, color picker, tech stack, SEO & more. No third-party code.

One launcher for the tools you keep reaching for while you build for the web. It all runs on your machine, and none of your browsing goes anywhere. Inspect - Tech stack: frameworks, CMS, analytics, server, CDN, and hosting for any page. Shows versions, flags outdated ones, infers the layers underneath, and can dump the raw signals it used. - SEO: meta tags, Open Graph, heading structure, links, and whether the page is indexable. - Fonts and colors: identify any font, pick any pixel. It keeps a history of your picks. - Request logger: watch the tab's requests as they happen. Modify - Header rules: add, rewrite, or strip request and response headers, per site. - Element zapper: click the junk on a page and it's gone. Custom CSS if you'd rather restyle the whole site. - Form filler: one click and the form is full of believable test data. - Video speed: hover controls and shortcuts on every video. Capture - Screenshots: full page or a selected area, with an editor for annotating before you export. - Screen recorder: tab recording with a webcam bubble and an auto-zoom camera that follows the action. Trim it, change speeds, add text. No watermark, nothing uploaded. Why you can trust it Omnitool was written from scratch after a popular extension turned out to be shipping malware. The ground rules: - No third-party code. Every line in the package was written for it. - No network calls. No analytics, no telemetry, no remote config. - Everything processes on your device. Captures and settings never leave it. - The privacy policy explains every permission in plain language. Free. No account, no upsell.