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Found a bug, need a tool that does not exist yet, or have a privacy question? Email us:

We read everything, but as a one-person project replies can take a few days. Please do not send files you consider confidential; we never need them, since every tool runs on your device.

Helpful details for bug reports

Which tool and what you expected to happen
Browser and version (for example Chrome 130, Safari 17.4)
Operating system and whether you were on a phone, tablet or desktop