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A local toolbox for web development, image processing, and data conversion An all-in-one local toolbox for web development, data conversion, image tasks, and page inspection. WebToolbox brings frequently needed web-development utilities into one Chrome extension, so you can handle common debugging, formatting, conversion, and visual-inspection tasks without switching among separate websites or tools. Install WebToolbox to work faster when you need to: - Format, repair, search, query, compare, and save JSON, CSV, Excel, Markdown, and psql table data. - Compare text or structured JSON and review changes clearly. - Convert Unix timestamps, local dates, UTC times, and Windows FILETIME values. - Convert variable names between `camelCase`, `PascalCase`, `snake_case`, `kebab-case`, and `CONSTANT_CASE`. - Preview Base64 images, crop images locally, and render SVG as PNG. - Inspect colors on the current page, review potential WCAG contrast issues, and preview temporary palette changes. - Copy or move cookies between HTTP/HTTPS domains one at a time when testing or migrating environments. - Create URL-based rules to replace text returned by page `fetch` and XMLHttpRequest calls for local debugging. Most tool inputs and results are handled in your browser. WebToolbox also provides English and Chinese interfaces, browser-synced preferences, and a single popup for quick access to every tool. Install it if you regularly move between JSON payloads, API responses, browser data, images, and web pages—and want a practical local toolbox available from the browser toolbar.
Aug 22, 2026
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Media assets
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Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
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Case-insensitive substring match in the name.
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Category user-count percentile
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