Hash & checksums
File Checksum Generator
Generate MD5 and SHA-256 checksums for local files without uploading them.
Runs locally in your browser
The file stays in your browser. Nothing is uploaded.
How to use this tool
Paste or type your input into the tool panel. Results update immediately where possible. For privacy-first tools, your input is processed locally in the browser and is not stored for analytics.
FAQ
Is this tool free?
Yes. Lumio Utils starts with free browser-based tools and does not require registration.
Do you store my input?
No tool inputs, file contents, passwords, or private generated outputs are stored for analytics.
Can hashes be decoded?
Cryptographic hashes such as MD5 and SHA-256 are one-way. This site generates and compares hashes; it does not claim to reverse them.