Browser extensions
Focused tools for quick website checks, design QA, screenshots, source inspection, image workflows, reader mode, search actions, and tab management.
12 tools
Currently in this catalogue, with more on the way.
Free to start
Every product ships with a free version or a free tier — paid plans add scale, not the core feature.
Plain data
Each product page lists what data is touched and where it lives, in plain English.
Pick the one that fits.
Every product page covers the job it handles, who it's for, pricing notes, and a plain privacy summary — so you can decide in a minute.
Accessibility Quick Audit
Run a quick local accessibility checklist on the active page.
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Font Inspector Pro
Inspect fonts, colors, spacing, and text CSS on any page.
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A1 Color Picker
Pick on-screen colors, copy HEX/RGB/HSL values, and keep a local color history.
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A1 Map Script Inspector
Inspect map script, iframe, visible error, library, and container clues locally.
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Performance Snapshot
Capture timing, request counts, transfer size, largest resources, and third-party domains.
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A1 Full Page Capture
Capture the active tab as a full-page screenshot and save PNG or JPEG files locally.
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Tab Command Palette
Search, switch, de-duplicate, and restore tabs from a fast keyboard palette.
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Page Source Plus
Summarise rendered page source, metadata, assets, images, and links from the active tab.
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HTML Validity Checker
Run local structural HTML checks for duplicate IDs, labels, links, headings, and document basics.
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Image Batch Saver
Scan the active page for images, filter by size or host, and download selected files.
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Reverse Image Search Menu
Right-click images or selected text and open searches in your chosen engines.
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Reader Mode + Local Reading List
Extract readable article content and keep a local browser reading list.
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