Runs fully in your browser. Inputs stay on your device. See recent fixes on changelog.
SHA-1 Hash Checker
Generate and verify SHA-1 hash checksums.
FreeRuns in browsersha1 hashsha1 checker
Cmd/Ctrl+Enter Primary actionCmd/Ctrl+Shift+L Load sampleCmd/Ctrl+Shift+X Clear/resetCmd/Ctrl+Shift+C Copy result
About SHA-1 Hash Checker
Generate and verify SHA-1 hash checksums online for free. Compute SHA-1 digests from text or file uploads and compare against known hashes for validation. Supports multiple industry-standard hash algorithms with instant computation. Includes a match-checking feature to verify data integrity by comparing hash values. Everything runs client-side in your browser for maximum speed and privacy — no data is sent to any server, and no signup is required.
Related tools: MD5 Hash Checker, SHA-256 Hash Checker, Hash Generator
How to Use SHA-1 Hash Checker
- Enter text or upload a file to hash.
- Select the hashing algorithm you want to use.
- View and copy the generated hash value.
Frequently Asked Questions
What is SHA-1 Hash Checker?
Generate and verify SHA-1 hash checksums online for free. Compute SHA-1 digests from text or file uploads and compare against known hashes for validation.
Which hash algorithms are supported?
The tool supports a range of industry-standard hash algorithms including MD5, SHA-1, SHA-256, SHA-384, and SHA-512. You can select the algorithm from the dropdown and the hash is computed instantly.
Can I hash files?
Some hash tools support file input, allowing you to drag and drop or browse for a file to hash. The file is read locally in your browser and never uploaded, keeping your data completely private.
Are the hashes cryptographically secure?
SHA-256 and above are considered cryptographically secure for most purposes. MD5 and SHA-1 are provided for compatibility and checksum verification but should not be used for security-sensitive applications.
Is SHA-1 Hash Checker free to use?
Yes, hashing is completely free with no limits on how many hashes you can generate. No registration is required.
Is my data safe when using SHA-1 Hash Checker?
Yes, all hashing is performed locally in your browser. Your input text or file is never uploaded to any server.