The best free desktop tools.
No uploads. Ever.
Merge, compress, convert and protect PDFs, images, documents and files on your own computer, not on someone else's server. Free forever, no account, no limits.
- Works offline
- No file limits
- No account
- No ads, no tracking
All 57 tools, free and offline.
Every tool runs on your computer. Pick one to see how it works, then do it in the app.
- Popular PDF Merge Combine several PDFs into one document, in the order you choose.
- Popular PDF Split Split a PDF into single pages, page ranges, or equal parts.
- Popular PDF Compressor Reduce PDF file size by optimizing structure and, optionally, images.
- Popular Protect PDF Add a password that's required to open a PDF, using AES-256 encryption.
- Popular Image to PDF Combine photos and images into a single PDF, in the order you choose.
- Popular Image Converter Convert images between PNG, JPEG, WebP, BMP and TIFF.
- Popular Image Compressor Make JPEG, PNG and WebP files smaller while keeping the same format.
- Popular Compress Image to Size Shrink photos to fit an upload limit like 50 KB or 100 KB, keeping as much quality as possible.
- PDF Page Organizer Reorder, rotate and remove pages, with thumbnails. Saves a new PDF.
- Document Converter Convert between Word, RTF, OpenDocument, HTML and plain text, and to PDF if LibreOffice is installed.
- Unlock PDF Remove the password from a PDF you can open, or lift its printing and copying restrictions.
- Add Watermark to PDF Stamp text such as CONFIDENTIAL or DRAFT across every page or the pages you pick.
- Add Page Numbers Number the pages of a PDF in the corner or center you choose, like 1, Page 1 or 1 / 10.
- Rotate PDF Turn all pages or just the ones you pick by 90, 180 or 270 degrees.
- Extract Images from PDF Save the photos and pictures embedded in a PDF as separate image files.
- PDF to Text Extract the text of a PDF into a plain .txt file, page by page.
- Excel & CSV Converter Convert Excel (XLSX, XLSM, XLS) and OpenDocument (ODS) spreadsheets to CSV or JSON, and CSV or TSV files to Excel.
- PDF to Images Export PDF pages as PNG or JPEG images at the resolution you choose.
- Image Resizer Resize images by percentage or to exact pixel dimensions, in batches.
- Crop Image Crop images to an aspect ratio, an exact pixel box, or trim away plain borders.
- Rotate & Flip Image Rotate images by 90 or 180 degrees, mirror them, or fix photos that show up sideways.
- Add Watermark to Image Stamp text such as your name or “Confidential” onto images, in a corner or tiled across the whole picture.
- Favicon Generator Turn a logo into a complete website icon set: favicon.ico, Apple touch icon, Android icons and a web manifest.
- Images to GIF Combine images into an animated GIF, in the order you add them.
- Color Palette Extractor Find the main colors in an image and copy their HEX, RGB and HSL values.
- ZIP / Unzip Compress files and folders into a ZIP, or safely extract ZIP archives.
- Batch Rename Rename many files at once with find & replace, numbering, prefixes and patterns, with a full preview first.
- Duplicate Finder Find files with identical content in the folders you choose. Reports only, never deletes.
- Metadata Inspector See hidden metadata (camera, GPS location, author, software) and save cleaned copies.
- Extract Archives (7Z, TAR, GZ) Safely extract 7Z, TAR, TAR.GZ, TAR.BZ2, TAR.XZ, TAR.ZST and ZIP archives, and decompress single .gz, .bz2, .xz and .zst files.
- Create TAR / 7Z / GZ Archive Pack files and folders into a .tar.gz, .tar.xz, .tar or .7z archive.
- Split & Join Files Split a large file into numbered parts with a SHA-256 checksum list, or join .001, .002… parts back into the original, verified.
- JSON Formatter Format, minify and validate JSON, with exact error locations.
- CSV ↔ JSON Convert CSV to JSON and JSON to CSV, with clear rules for headers, types and nesting.
- Base64 Encoder / Decoder Encode text or files as Base64, or decode Base64 back to text or a file.
- Hash Generator Calculate SHA-256 and other checksums for text or files, and compare against an expected value.
- QR Code Generator Create QR codes for links, text, Wi-Fi networks and contacts. Export as PNG or SVG.
- Text Diff Compare two texts or text files and see added, removed and changed lines.
- Password Generator Generate strong random passwords or memorable passphrases, with an honest strength estimate. Created on this computer and never stored.
- UUID Generator Generate UUIDs (v4 random, v7 time-ordered), ULIDs and NanoIDs, or inspect pasted IDs for their version and timestamp.
- Lorem Ipsum Generator Generate placeholder text as paragraphs, sentences or words, in plain text or HTML.
- Barcode Generator Create Code 128, EAN-13, EAN-8, UPC-A, Code 39 and ITF barcodes, with check digits computed and validated. Export as PNG or SVG.
- QR Code Reader Read QR codes from photos and screenshots, including links, Wi-Fi details and contact cards.
- Word Counter Count words, characters, sentences and paragraphs, estimate reading time and find the most used keywords.
- Case Converter Change text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case and other cases.
- Text Cleaner Trim, de-duplicate, sort and tidy lines, collapse spaces, and strip punctuation or HTML tags.
- Find & Replace Find and replace text, using plain text or regular expressions with group references.
- Regex Tester Test a regular expression against text and see every match with its position and captured groups.
- URL, HTML & Binary Encoder Encode or decode URLs, HTML entities, binary, hex and Unicode escapes.
- URL Parser Break a URL into scheme, host, port, path, query parameters and fragment, with everything decoded.
- JWT Decoder Decode a JSON Web Token to read its header, payload and expiry, and optionally check an HMAC signature.
- Timestamp Converter Convert Unix timestamps to dates and dates to Unix time, in UTC and your local time zone.
- Color Converter Convert colors between HEX, RGB, HSL, HSV and CMYK, find the nearest CSS name and check WCAG contrast.
- Number Base Converter Convert whole numbers of any size between binary, octal, decimal, hexadecimal and any base from 2 to 36.
- Markdown to HTML Convert Markdown to HTML, as a fragment or a complete styled page, or turn HTML back into Markdown.
- SQL & XML Formatter Format or minify SQL and XML, and check that XML is well-formed.
- JSON, YAML & XML Converter Convert data between JSON, YAML, TOML and XML, with the input format detected automatically.
No tool matches that. Try “pdf”, “compress”, “jpg” or “password”.
Browse by category: PDFs & Documents · Images · Files & Archives · Developer & Text
The tools you'd use online, without the upload.
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Your files never leave
Online converters upload your contracts, IDs and photos to their servers. Toolfox processes everything on your computer, so there is nothing to upload, store or leak.
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Works without internet
On a plane, on a slow connection or behind a strict company network: every tool works with Wi-Fi switched off.
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No limits, no waiting
No file-size caps, no daily quotas, no upload queues. Batch hundreds of files at the speed of your own computer.
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Free, with no catch
No account, no ads, no watermarks, no trial that runs out. All tools are free forever.
Online converters compared with Toolfox
| Question | Typical online converter | Toolfox |
|---|---|---|
| Your files are uploaded to a server | Yes | Never |
| Works without internet | No | Yes |
| Account or email required | Often | Never |
| File-size or daily limits | Usually | None |
| Watermarks or paid tiers | Often | None |
| Ads and trackers | Usually | None |
| Batch many files at once | Limited | Yes |
| Price | Free tier, then paid | Free forever |
Three steps. Zero uploads.
- 1
Download Toolfox
One small, free app for Mac, Windows or Linux. No sign-up.
- 2
Pick a tool
Search 57 tools or drop files on the window; Toolfox suggests what you can do.
- 3
Done, on your computer
Results are saved next to your originals. Nothing is ever uploaded.
Drop a file. Watch it not leave.
This box computes a real SHA-256 fingerprint of any file using only your browser, the same way Toolfox works on your computer. Open your browser's network inspector while you try it: nothing is sent.
- Uploaded0 B
- Requests made0
- Where it ranYour device
What is Toolfox?
Toolfox is a free app for macOS, Windows and Linux that bundles 57 everyday tools: PDF merge, split, compress, protect, unlock, watermark, page numbers and text extraction; image compress (including to an exact KB size), resize, crop, convert, watermark and GIF making; document and Excel/CSV conversion; ZIP, 7Z and TAR archives; batch rename and duplicate finder; and developer tools such as JSON, YAML and XML conversion, JWT decoding, a password generator, word counter, QR codes and barcodes. Everything runs locally on your computer.
Is Toolfox really free?
Yes. Toolfox is free forever with no subscriptions, paid tiers, ads, usage limits, watermarks or account.
Does Toolfox upload my files?
No. Toolfox never uploads your files: every tool runs on your computer using code built into the app and the operating system's own engines, and all 57 tools passed their test suite with networking blocked. The only time Toolfox goes online is when you check for updates (off by default), and that only downloads a small version file; nothing about you or your files is sent.
Does Toolfox work offline?
Yes. Every tool works without an internet connection, including in airplane mode.
Which operating systems does Toolfox support?
macOS 11 or later on Apple silicon; Windows 10 and 11 (64-bit); and 64-bit Linux, as an AppImage or a .deb package for Debian and Ubuntu. All 57 tools are available everywhere. Reading HEIC/AVIF photos currently works on macOS only, and document conversion on Windows and Linux uses LibreOffice, which you install.
macOS says Toolfox can't be opened or “Apple could not verify” it. What do I do?
Toolfox isn't notarized by Apple yet, so macOS asks once. Open Toolfox, click Done, then go to System Settings → Privacy & Security, scroll down and click Open Anyway next to Toolfox, and confirm. On macOS 14 and earlier you can instead right-click the app and choose Open. You only need to do this once.
Windows shows “Windows protected your PC”. Is Toolfox safe?
Toolfox isn't code-signed for Windows yet, so SmartScreen warns about new apps. Click More info, then Run anyway. You can verify the installer first with its published SHA-256 checksum on the download page.
The best free tools are the ones that never upload.
Free forever. No account. Works offline. For macOS, Windows and Linux.