your files never leave your device
Free online tools that run in your browser.
Merge a PDF, shrink an image, format some JSON — instantly. Every tool works 100% client-side, so your files stay private.
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no uploads
no sign-up
open source
Processed right here.
Your files stay on this device.
Your files stay on this device.
0 uploads
runs offline
100% client-side · runs in your browser
no uploads · files never leave your device
no sign-up · free and instant
PDF tools
Merge, split, compress and convert PDF files — all in your browser, with zero uploads. Your documents stay private and the tools work offline.Merge PDF
Combine multiple PDFs into a single ordered file — drag to reorder pages, merge instantly in your browser, no upload required.
Split PDF
Extract pages or split a PDF into separate files — choose pages to keep, split by range, all done locally in your browser.
Compress PDF
Reduce PDF file size while keeping it readable — optimize for email, web uploads, and storage, all in your browser.
PDF to JPG
Convert PDF pages to high-quality JPG images — perfect for sharing, embedding, or using in presentations, all client-side.
JPG to PDF
Convert JPG images into a single PDF document — bundle photos, scans or screenshots, all processed locally in your browser.
Rotate PDF
Fix PDF page orientation — rotate individual or all pages in 90-degree increments, right in your browser, no upload needed.
Watermark PDF
Add a text or image watermark to your PDF — protect documents, brand your work, or mark drafts, all processed locally.
Unlock PDF
Remove password protection from a PDF — unlock documents you own so you can edit, print, or share them freely, all client-side.
Image tools
Compress, resize, crop and convert images in your browser — no quality surprises, no uploads. Perfect for web optimization and social media prep.Compress image
Reduce image file size with adjustable quality — optimize JPEGs and PNGs for web, email, and social media, all client-side.
Resize image
Set exact pixel dimensions or scale by percentage — resize images for social media, thumbnails, or web layouts instantly.
Crop image
Trim images to a region or fixed aspect ratio — crop photos, remove backgrounds, and frame perfectly, all in your browser.
Convert image
Switch between PNG, JPEG, WebP, AVIF, BMP, and ICO formats — convert images for web compatibility, file size, or transparency, all client-side.
Rotate image
Turn or straighten photos by any angle — fix tilted horizons, rotate selfies, or flip orientation, all in your browser.
Flip image
Mirror images horizontally or vertically — create reflections, fix mirrored selfies, or flip for design purposes, all client-side.
Watermark image
Add a text or image watermark to protect your photos — brand, copyright, or mark images, all locally in your browser.
Image to Base64
Encode any image as a Base64 data URI string — embed images directly in HTML, CSS, or JSON, all client-side.
Remove background
Remove image backgrounds instantly with AI — precise deep-learning model runs entirely in your browser, no uploads.
File converter
Convert images (PNG, JPEG, WebP, AVIF, BMP, ICO), video (MP4, WebM, GIF), and audio (MP3, WAV, OGG) between formats — drop any file, see compatible output options, all processed locally.
Developer tools
Format JSON, decode tokens, generate hashes and more — the everyday developer utilities, all running client-side for maximum privacy.JSON formatter
Prettify, minify and validate JSON in your browser — no upload, instant results.
Base64 encode / decode
Encode and decode Base64 text instantly — UTF-8 safe, no upload, runs in your browser.
JWT decoder
Decode and inspect JWT tokens — header, payload and signature at a glance, all client-side.
URL encode / decode
Encode and decode URL strings — handle query parameters, paths, and special characters safely, all client-side.
Hash generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes — instant, client-side, via the Web Crypto API.
UUID generator
Generate random v4 UUIDs in bulk — RFC 4122 compliant, via crypto.randomUUID(), all client-side.
Regex tester
Test regular expressions with live highlighting — see matches, capture groups, and flags in real time, all client-side.
Timestamp converter
Convert between Unix timestamps and human-readable dates — seconds or milliseconds, in your timezone, all client-side.
Privacy isn’t a setting here — it’s the architecture.
There’s no server to upload to. Each tool loads once, then does all its work inside your browser tab. Close the tab and nothing remains.
no file uploads
no account required
no file tracking