About

Small tool. Big savings.

Crunchy exists because shrinking a PDF shouldn't mean uploading it to a stranger's server.

Made by H190K

H190K is an independent developer building small, focused tools that respect your time and your data. Crunchy is one of them: a native-feeling Windows app that does one job, compressing files, quickly and privately.

No venture capital, no growth hacks, no dark patterns. If Crunchy saves you some disk space or an "attachment too large" email, it's done its job.

Visit h190k.com H190K on GitHub Download Crunchy

Privacy

The short version: we don't collect anything.

The app

Your files never leave your PC. All compression happens locally. Nothing is uploaded, ever.
No telemetry, analytics or crash reporting. Crunchy doesn't phone home about what you compress or how you use it.
No account. There's nothing to sign up for.
Update checks only: at launch and once a day while it's open, Crunchy fetches /update/latest.json, a small public JSON file with the latest version numbers. If you choose to update, it downloads the installer from this site too. The setup, and Crunchy when you agree to it, also download FFmpeg, the video component. Like any web request, these reveal your IP address to the host; no identifiers are sent.

This website

No cookies, no trackers, no analytics, no third-party fonts.
Feature requests: the form on the roadmap sends what you type (and your country, as reported by Cloudflare) privately to the developer's Discord. Nothing else is stored. It uses Cloudflare Turnstile, the only third-party script on the site and only on that page, to keep spam out.
The site is served by Cloudflare Pages, which may keep standard, short-lived request logs for security and reliability.

Questions about privacy? Get in touch via h190k.com.

Credits

Built on great open source.

Crunchy stands on the shoulders of these projects. Each keeps its own license; the full texts ship with the app (About → Licenses, or the licenses folder next to Crunchy.exe).

Python — PSF License
Qt 6 & PySide6 — LGPL-3.0 (dynamically linked, replaceable)
Pillow — MIT-CMU, with libjpeg-turbo, libpng, zlib, libtiff and libwebp
pikepdf — MPL-2.0, and qpdf — Apache-2.0
lxml — BSD-3-Clause, with libxml2 and libxslt
scour — Apache-2.0
FFmpeg — GPL-3.0-or-later (ffmpeg.org), with the x264, x265 and SVT-AV1 encoders it includes. It powers video and audio compression, is an optional separate download (offered by the setup and the app) and runs as its own program; its licence and a link to its source code ship with Crunchy and are on the app's About page.
Cairo and Lalezar fonts (Arabic interface) — SIL Open Font License 1.1
The setup wizard is built with Inno Setup, using its community Arabic translation

Thank you to every maintainer who makes tools like this possible.