Free tools that run on your device
Convert images, merge and compress PDFs, trim video and format code, all inside this browser tab. No signup, no watermark and no size limit set by a server, because there is no server.
Drop any file
We detect the type and suggest the right tool. Or browse your device.
The conversions people use most
Each page opens with the right output format already chosen.
70 tools for images, PDFs, video, audio and code
Everything runs in your browser tab. Open a suite to see what it covers, or jump straight to a tool.
Convert, compress and enhance images
A converter for every common pair, a compressor that lands on an exact file size, a resizer with presets, and AI that upscales photos and cuts out backgrounds on your own graphics card.
Browse all image toolsMerge, split, sign and protect PDFs
Merge, split and reorder with live page thumbnails, compress, sign, redact for real, lock with AES-256, and turn PDFs into images, text or a Word file.
Browse all PDF toolsTrim, convert and compress video and audio
Trim, convert, compress and join videos, make GIFs, pull audio out as MP3 and clean noise from recordings. Encoding uses your device video hardware, so it is fast and your videos never leave the tab.
Browse all video and audio toolsFormat, decode and compare code and data
Format and validate JSON, test a regex with a plain-English breakdown, decode JWTs, diff text, convert between JSON, CSV, YAML and XML, and read cron schedules. Safe for secrets, because nothing is sent anywhere.
- JSON formatter
- Regex tester
- JWT decoder
- Diff checker
- JSON to CSV
- Cron parser
- Timestamp converter
- Markdown to HTML
Generate, hash, encrypt and inspect
Strong passwords and passphrases with measured entropy, streaming file hashes, AES-256 text encryption, QR and barcode makers, and viewers for CSV and Excel files.
- Password generator
- Hash generator
- Encrypt text
- QR code generator
- QR code reader
- CSV viewer
- Excel to CSV
- ZIP tool
Check that your files never leave your device
Tooloat counts every byte of request data your browser sends from this page. Tools read your files into memory, process them in the tab and save the result through your normal download.
- 1Open the developer tools of your browser and switch to the Network tab.
- 2Convert a file with any tool on this site.
- 3Watch the list. Ads make their own requests, but none carries your file, and the counter here stays at zero.
0 B
sent by the tools to any server
- Requests carrying a body
- 0
- Sent by Google ads
- 0 B
- Other hosts contacted
- None
- Content Security Policy
- Runs only scripts this site loads
Your files have not left this tabFiles are read, processed and saved on your device. Drop one above and watch the counter.
From drop to download
No account, no queue and no upload to wait for. Every step happens on your device.
Drop your files
Drag in one file or a whole folder. Tooloat recognises the type from the file contents, not only the extension, and suggests the right tool.
Adjust the settings
Pick a format, quality or size. Heavy work such as video encoding and AI runs in the background with its own progress bar.
Download the result
Results save straight to your device. Batches arrive as one ZIP, so a hundred files are still a single click.
Built differently from upload-based converters
Most free converters send your file to a server and hand a copy back. Tooloat keeps the work on your device, which changes what is possible.
| Feature | Tooloat | Typical online converter |
|---|---|---|
| Where your files go | They stay on your device | They are uploaded to a company server |
| File size limits | Only your device memory | Usually capped on free plans |
| Watermarks and quotas | None | Common on free plans |
| Account required | Never | Often, especially for batches |
| Speed | No upload or download wait | Depends on your connection |
| Works offline | Yes, once a tool has loaded | No |
Convert between the formats you use
Pick the format you have. Each result opens the right tool with the output already chosen.
Questions and answers
The short version: your files stay on your device, and there is nothing to pay for or sign up to.
Is Tooloat really free?
Yes. There is no account, no watermark and no daily limit. The tools run on your own device, so there is no server bill to pass on.
Are my files uploaded anywhere?
No. Files are read into your browser memory and processed there, and the results are saved with your browser download. The published site also tells the browser to refuse connections to any other server, apart from the one-time model download that the AI tools need.
How can I check that nothing is uploaded?
Open the Network tab of your browser developer tools while you convert something, or watch the bytes sent counter in the top bar. You can also switch off your internet connection after a tool has loaded and keep working.
Which file formats are supported?
Images: JPG, PNG, WebP, AVIF, HEIC, GIF, BMP and SVG. Documents: PDF, Excel, CSV, JSON, YAML, XML and Markdown. Media: MP4, MOV, WebM, MKV, MP3, WAV, FLAC, OGG and M4A. Archives: ZIP, TAR and GZ. Each tool page lists what it reads and writes.
Is there a file size limit?
Tooloat sets none. The practical limit is the memory of your device, so a phone handles fewer very large files than a desktop. Processing big batches in smaller groups always works.
Does it work offline?
Yes. Once a tool has loaded, it keeps working without a connection. The AI tools also need their model file, which is saved after the first download.
Which browsers and devices work?
Current versions of Chrome, Edge, Safari and Firefox on desktop and mobile. The video and audio tools use WebCodecs, which needs a reasonably recent browser, and the AI tools are fastest on devices with WebGPU.
What is the difference from other online converters?
Most online converters upload your file, process it on their server and send it back, which is slower and puts private files on a computer you do not control. Tooloat does the work locally, so it is private by design and has no size limits or watermarks.
Start with any file
Open the tool you need, or drop a file in the area at the top and Tooloat will suggest one. Nothing to install and nothing to upload.
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