LightUtils

36 file tools that physically cannot upload your files

Design Tools Productivity Privacy發布於 2026年8月4日

什麼是 LightUtils？

Every other free PDF tool uploads your file and promises to delete it later. LightUtils cannot upload it. The site ships a Content Security Policy with connect-src 'none', so the browser itself forbids this page from making any network request. Verify it in DevTools in ten seconds. 36 tools for PDF, image, video, audio and CSV. No account, no watermark, no daily limit, no size cap, because there is no server cost per file. Full English and Thai.

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