JSON Formatter
Beautify, minify, and validate JSON with clear error messages—locally in your browser.
ToolsWeb
Free online tools that stay on your device
Merge PDFs, compress images, format JSON, test regex, and run everyday calculators in your browser. Supported tools process with JavaScript and Web APIs—so files and tokens do not need to leave your computer.
Runs in your browser
No signup required
Files stay on your device
Local processing
Popular Tools
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Merge PDF
Combine multiple PDFs into one document. Processing stays in your browser—your files are not uploaded.
Drop PDF Files Here
Image Compressor
Reduce JPG, PNG, and WebP file size with quality controls before you share or publish.
Word Counter
Count words, characters, and reading time as you type—no account required.
Regex Tester
Test patterns with live highlighting and capture groups. Your text stays on your device.
Password Generator
Generate random passwords with Web Crypto. Nothing is stored on ToolsWeb servers.
Built to get out of your way
Local processing for supported tools · No account · Limits from your device—not a paywall.
01
Privacy first
Supported tools process files and text in the browser with Web APIs. We do not run a file-upload pipeline for those tasks.
02
Instant feedback
No upload progress bars for local tools. Speed depends on your device—not our server queue or your upload bandwidth.
03
Honest limits
Very large files may hit browser memory limits. We say so up front instead of inventing a free-tier ceiling.
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Frequently Asked Questions
Is ToolsWeb free?expand_more
Yes. Core tools are free to use with no signup. We do not lock basic features behind a subscription.
Are my files uploaded?expand_more
For supported tools—such as PDF merge and image compression—processing runs in your browser. Your files are not uploaded to ToolsWeb servers to complete those tasks. See each tool’s Privacy note and our Privacy Policy for details.
Do I need an account?expand_more
No. Open a tool and start. We do not require registration for core use.
Does it work on mobile?expand_more
Yes on modern mobile browsers. Large files may hit device memory limits sooner than on desktop.
Are calculators medical or financial advice?expand_more
No. Health and finance calculators produce estimates for general information only. Read the Disclaimer on those tools.