Free online tools that never see your data
- No Sign-up
- 100% Free
- Zero Server Data
All tools run locally in your browser. Since we have no backend database, what you paste stays on your device. Feel free to verify this in your Network tab.
Images
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Image Converter & Compressor
Convert to WebP, JPEG or PNG, resize, and cut the file size. The photo never leaves your device.
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Image Cropper
Crop to any size or aspect ratio, by dragging or by typing exact pixels. The photo never leaves your device.
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Remove a Plain Background
Cut a subject off a single-colour background and save it as a transparent PNG. Nothing is uploaded.
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Image to PDF
Photos and screenshots into one PDF, in the order you choose. Nothing is uploaded.
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Merge PDF
Join PDFs into one, in the order you choose. Nothing is uploaded.
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Split PDF
Extract, delete or rotate pages, or cut a PDF into several files. Nothing is uploaded.
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Compress PDF
Shrink a scanned PDF by re-compressing the photographs inside it. Nothing is uploaded.
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Watermark PDF
Stamp a watermark or page numbers on every page, in any language. Nothing is uploaded.
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Protect PDF
Add a password to a PDF with AES-256. The file never leaves your device.
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Video & audio
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Compress Video
Make an MP4 smaller without uploading it. Choose a size and a quality, and watch it work.
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Remove Background Noise
Take wind, hiss and mains hum out of a recording. It reports the result in decibels, and nothing is uploaded.
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Remove Audio from Video
Mute an MP4 without touching the picture. Lossless, and nothing is uploaded.
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Extract Audio from Video
Pull the soundtrack out of an MP4 without re-encoding. Nothing is uploaded.
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Generators & calculators
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QR Code Generator
Codes for links, WiFi, contact cards, email and more, with a logo and your own colours. Nothing is uploaded.
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Percentage Calculator
Percentages, discounts, percentage change, and VAT added or removed. No sign-up, nothing uploaded.
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Secure Password Generator
Strong random passwords from your operating system’s cryptographic source, with a live entropy readout. 8 to 64 characters.
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Developer & data
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JSON Formatter & Validator
Pretty-print, validate and minify JSON. Errors give the line and column. Handles 5 MB files without freezing the page.
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Base64 Encoder & Decoder
Encode and decode Base64 with correct UTF-8 handling and a URL-safe option. Tolerates unpadded and line-wrapped input.
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URL Encoder & Decoder
Percent-encode values or whole URLs, and break a query string into its parameters, duplicate keys included.
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MD5 & SHA Hash Generator
MD5, SHA-1, SHA-256, SHA-384 and SHA-512 from one box of text, all shown at once.
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Unix Timestamp Converter
Epoch to date and back, in seconds or milliseconds. Nothing is uploaded.
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