Get the small task done,
then get back to work.
Word counts, PDF fixes, converters, generators: every tool runs in your browser, gives you the result, and gets out of your way. No account, no upload to a server.
Start with what everyone reaches for first.
A handful of favorites. The rest are one click away on the full tools page.
Compress PDFs instantly and privately right in your browser
Instantly generate strong passwords to keep your accounts safe
Convert JPG images to high-quality PDFs instantly in your browser
Clean up messy text instantly by removing unwanted extra spaces
Prettify, minify and validate JSON with syntax error detection
Calculate your exact age in years, months, days, and hours
Or browse by category
Every tool on penpost lives in one of five groups. Jump straight to the one you need.
Text & Content
Counters, converters, and generators for copy you’re writing, cleaning up, or reformatting perfectly.
PDF Utilities
Compress, merge, split, convert, and clean up PDFs instantly without installing heavy programs.
Image Tools
Crop, scale, transform aspect ratios, and export clean file structures safely.
Development
Sanitize raw JSON datasets, evaluate regex syntax, and compute hashes.
Utilities
Generate high custom QR matrices or verify access string complexity limits.
Built for whatever’s on your plate today
Same tools, different jobs. A few common ways people use penpost.
Developers
Format a JSON blob, test a regex, or hash a string without leaving the browser tab you’re already in.
Writers & marketers
Check word counts, clean up spacing, and generate placeholder copy while drafting or reviewing.
Students
Shrink a PDF before a submission portal rejects it, or check the exact age or date interval for a form.
Freelancers & designers
Convert client images, pull a color from a mockup, or turn a JPG into a clean, shareable PDF.
Three steps. No third one you didn’t expect.
Every tool on penpost follows the same shape, so once you’ve used one, you already know how to use the rest.
Pick a tool
Search or browse by category. Each tool does exactly one job, nothing bundled, nothing to configure first.
Drop in your input
Paste text, upload a file, or type a value. It stays on your device, nothing is sent to a server to process.
Get your result
Formatted, converted, or generated instantly. Copy it, download it, or run the next tool. No waiting room.
Everything you need. Nothing that phones home.
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Runs the instant you press enter
Processing happens in your browser tab, so there’s no upload, no queue, no spinner waiting on a server.
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Your files never leave your device
We don’t store, log, or get a copy of what you paste or upload. Close the tab and it’s gone.
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Free means free
No premium tier, no locked features, no surprise paywall on tool 3. Every tool stays free.
Good to know
Pick a tool. It’s free forever.
Thousands of small tasks, one tool each. Find yours in under ten seconds.
Browse the full toolbox