Hash Generator
Featured
Generate SHA-256, SHA-384, and SHA-512 hashes.
- On your device
- No signup
Private on your device
Your information stays on your device and is not uploaded.
Related tools
UUID Generator
Featured
Generate UUIDs for apps, tests, and databases.
- On your device
- No signup
JSON Formatter
Featured
Format, minify, and validate JSON with optional key sorting.
- On your device
- No signup
JSON Compare
Featured
Compare two JSON documents and list structural differences.
- On your device
- No signup
XML Formatter
Featured
Format, minify, and validate XML with readable indentation.
- On your device
- No signup
XML Compare
Featured
Compare two XML documents and list structural differences.
- On your device
- No signup
Base64 Encoder & Decoder
Featured
Encode and decode text with Base64.
- On your device
- No signup
JWT Decoder
Featured
Decode JWT header, payload, and expiry—including Bearer tokens—on your device.
- On your device
- No signup
Choose a file and generate a SHA-256, SHA-384, or SHA-512 checksum with secure random generation. Hashing works on your device and files are not uploaded.
How to use this tool
1. Paste source text, code, or data into the File Checksum Calculator input panel. 2. Choose transform or validation options shown for File Checksum Calculator. 3. Run File Checksum Calculator or read automatic output. 4. Review errors or diff output carefully. 5. Copy the transformed result. Processing runs on your device; inputs are not uploaded to our server.
Worked example
Example: paste a small sample input into File Checksum Calculator, run the transform or validation, and compare the output with the before text—fix any syntax errors reported before copying.
How it works
Choose a file and generate a SHA-256, SHA-384, or SHA-512 checksum with secure random generation. Hashing works on your device and files are not uploaded.
Limitations
Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.
Privacy and file handling
Your data stays on your device and is not uploaded.
FAQ
Frequently asked questions
Are files uploaded?
No. Checksums are created on your device and files are not uploaded.
Which algorithms are supported?
SHA-256 (default), SHA-384, and SHA-512.
Is File Checksum Calculator free to use?
Yes. Utilnivo tools are free to use and do not require an account.
Part of these workflows
This tool is one step in a longer job. Jump straight to your step or open the full workflow guide.
Related pages
- Security tools — compare developer tools and read FAQs
- Best free developer tools — compare developer tools and read FAQs
- Checksum and encoding tools — compare developer tools and read FAQs
- Verify a download with checksums — step-by-step workflow
- Browse all free online tools on Utilnivo
- Explore more developer tools on Utilnivo
- Hash Generator — Generate SHA-256, SHA-384, and SHA-512 hashes.
- UUID Generator — Generate UUIDs for apps, tests, and databases.
Page last reviewed: