你需要的每一款工具，尽在一处

Convert iPhone HEIC photos to JPG/PNG/WEBP — in your browser (libheif), your files never leave your device.

Convert multiple images to PNG/JPG/WEBP at once — in your browser, free, files never leave your device.

Compress JPG/JPEG images with adjustable quality — batch, in your browser, free, files never leave your device.

Shrink PNG images with color quantization (TinyPNG-style) — batch, in your browser, free, files never leave your device.

Remove image backgrounds with AI (transparent PNG) — in your browser, free, files never leave your device.

Resize, iPhone-style crop and convert images — in your browser, free, files never leave your device.

Reorder and combine multiple PDFs into one — in your browser, free, files never leave your device.

Shrink PDF size — batch, in your browser, files never leave your device.

Combine multiple images (JPG/PNG/WEBP) into one PDF — in your browser, free, files never leave your device.

Split a PDF into pages — in your browser, free.

Convert Word (DOC/DOCX/ODT/RTF) documents to high-fidelity PDF — server-side via LibreOffice, your file is processed then deleted instantly.

Convert a PDF into an editable Word (DOCX) document — server-side via LibreOffice, deleted instantly. (Results are approximate by nature of PDF.)

Convert Excel (XLS/XLSX/ODS) spreadsheets to PDF — server-side via LibreOffice, your file is processed then deleted instantly.

Convert PowerPoint (PPT/PPTX/ODP) presentations to PDF — server-side via LibreOffice, your file is processed then deleted instantly.

Extract audio from MP4 videos and convert to MP3 — batch, in your browser, free, files never leave your device.

Convert MP3 audio to lossless WAV — batch, in your browser, free, files never leave your device.

Extract the audio track from a video and download as MP3 or WAV — batch, in your browser, files never leave your device.

Trim audio on a waveform by dragging and download as MP3/WAV — in your browser, free, files never leave your device.

Pick a range of your video, set FPS + size, convert to GIF — in your browser, your file never leaves your device.

Convert WebM videos to MP4 — in your browser (WebCodecs), hardware-accelerated, your file never leaves your device.

Convert MPEG videos to MP4 — in your browser (WebCodecs), your file never leaves your device.

Convert MP4 videos to WebM — in your browser (WebCodecs), hardware-accelerated, your file never leaves your device.

Convert between Excel (XLSX/XLS), CSV and JSON — in your browser, your files never leave your device.

Generate every favicon size + .ico + site.webmanifest from one image, download as ZIP — in your browser, free.

Generate a QR code from text or URL — color, size, error correction; download PNG/SVG. In your browser, free.

Beautify, minify, validate JSON and sort keys — live error reporting, in your browser, free.

Encode or decode text to/from Base64 — UTF-8 safe, URL-safe option. In your browser, free.

Encode/decode URLs and query params — component or full URI. In your browser, free.

Generate random UUIDs (v4) — bulk, format options, copy/download. In your browser, free.

Test regular expressions live — match highlighting, groups, flags. In your browser, free.

Build linear/radial/conic CSS gradients — live preview, color stops, copy. Free.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from text or files — in your browser, free.

Build cron expressions with a human-readable description — presets, field editor. Free.

Look up a domain's WHOIS/RDAP record — registrar, registration/expiry dates, status, nameservers, DNSSEC. In your browser, free.

Look up a domain's A/AAAA/MX/TXT/CNAME/NS/SOA records — DNS-over-HTTPS, in your browser.

See how a URL looks when shared (Open Graph/Twitter) and inspect its meta tags.