Online File Hash Value Generator- SHA-1, SHA-256
Generate cryptographic hash values for files directly in your browser. This online file hash generator supports SHA-1, SHA-256, SHA-384, and SHA-512 and more, allowing you to verify file integrity, detect changes, and compare file authenticity without uploading files to a server.
Generate file and text hash values online using multiple algorithms. Supports single and bulk file hashing, large files, real-time progress, hash verification, and local browser-based processing with no uploads.
What Is a File Hash?
A file hash is a fixed length value generated from a file using a hashing algorithm. It acts like a digital fingerprint even a small change in the file will produce a completely different hash value. File hashes are commonly used to verify file integrity, detect modifications, and confirm that files are identical.
Contents
Common use cases include
- Verifying downloaded file integrity
- Detecting file changes or tampering
- Comparing duplicate files
- Security and digital forensics
- Software checksum validation
Privacy & Security
Your data never leaves your device. Files and text are not uploaded to any server all hashing and verification are performed locally in your browser using secure, standard cryptographic APIs. This ensures maximum privacy, prevents data leakage, and allows you to inspect sensitive files with confidence.
Drag and drop a file or upload it from your device, then select the hash algorithm you want to use. You can choose a single algorithm or multiple algorithms, and generate all selected hash values in a single click.
Usage
- Drag and drop a file or choose one from your device.
- Select a hash algorithm (single or multiple).
- Click the Generate button to create the hash value(s).
- Copy the hash result or download it as a TXT or JSON file.
Note: We do not upload any files to a server. All processing is performed locally in your browser.
Select a hash algorithm:
Generate cryptographic hashes for multiple files in a single batch operation. Upload your file collection, select your preferred algorithms, and let our tool process everything automatically. Monitor individual file progress in real-time, and export comprehensive reports in JSON.
This tool supports hashing multiple files with a single algorithm, or generating hash values using multiple algorithms for all files in one click.
You can choose which file extensions are allowed before dropping files or folders.
Hash all files with a single or multiple algorithms
Select algorithm:
Multiple Files JSON Hash Verification
To verify hash values for multiple files, first generate the hashes by uploading or dropping the files. Then click Verify JSON, choose whether to use the previously generated JSON (upload a JSON file or paste JSON text), and finally click Verify JSON to start the verification process.
Generate hash values from plain text using multiple cryptographic and non-cryptographic algorithms. This tool is useful for hashing passwords, tokens, API keys, or verifying text-based checksums instantly without uploading any files.
Select algorithm:
Check whether a file matches an existing hash value. Upload your file, select the hash algorithm, and paste the expected hash to instantly verify file integrity. This tool helps confirm that a file has not been altered and matches the original checksum.
How to use the Verify File Hash tool
- Select the input type: File or Plain Text.
- Upload a file or paste text into the input box.
- Paste the expected hash value.
- Select the hash algorithm (SHA-256, MD5, SHA-512, etc.).
- Click Verify.
Select the input type to verify a hash value: upload a file or enter plain text.
Key Features of the Online File Hash Generator
🔐 Supports Multiple Hash Algorithms
Generate hashes using SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, MD5, CRC32, BLAKE3, and xxHash64.
🧪 Tested for Large-Scale Bulk Hashing
Successfully tested with 200,000+ files in bulk hashing mode to ensure stability and performance.
💾 Supports Very Large Files
Verified hashing support for single files up to 6 GB, limited only by your device memory and CPU.
⚙️ Single & Bulk File Hashing
Hash a single file or multiple files in bulk. Generate hash values using a single algorithm or multiple algorithms for all files in one click.
🚫 No File Size or File Count Limit
There is no file size limit and no limit on the number of files you can hash. Large files and bulk hashing performance depends only on your device CPU and memory capacity.
⚡ High-Performance Browser-Based Processing
All hash calculations run locally in your browser using optimized JavaScript. No files are uploaded to any server, ensuring fast performance and maximum privacy.
📊 Real-Time Hashing Progress
View real-time progress indicators while hashing large files or processing multiple files in bulk, including per-file and overall progress status.
📁 Smart File Selection & Filtering
Before dropping files or folders, you can filter allowed file extensions to automatically exclude unwanted files during bulk or directory hashing.
🗂️ File List Management (Bulk Mode)
When hashing multiple files, a complete list of selected files is displayed. You can remove unwanted files before generating hash values.
🔄 Hash Output Format Options
Hash values can be displayed in lowercase or uppercase.
✅ File Integrity Verification (Hash Match)
Verify file integrity by comparing expected and computed hash values. Clear match or mismatch indicators make it easy to confirm file authenticity.
📥 Export & Download Results
Download hash results in multiple formats:
- Single file: TXT or JSON, CSV
- Multiple files: JSON, CSV
🔒 Privacy-Focused Design
All processing happens entirely on your device. Files never leave your browser, making this tool safe for sensitive and confidential data.
Choosing the right hash algorithm depends on your use case security, speed, or data integrity. The table below helps you quickly compare supported algorithms and understand when to use each one.
| Algorithm | Security | Speed | Typical Use Case | Output Length |
|---|---|---|---|---|
| SHA-1 | ❌ Weak | ⚡ Fast | Legacy checksums | 160 bits (40 chars) |
| SHA-256 | ✅ Strong | ⚡ Fast | File integrity, security | 256 bits (64 chars) |
| SHA-384 | ✅ Strong | ⚡ Medium | High-security systems | 384 bits (96 chars) |
| SHA-512 | ✅ Very Strong | ⚡ Medium | Large file hashing | 512 bits (128 chars) |
| SHA3-256 | ✅ Very Strong | ⚡ Slower | Modern cryptography | 256 bits (64 chars) |
| BLAKE3 | ✅ Very Strong | 🚀 Very Fast | High-performance hashing | 256 bits (64 chars, default) |
| MD5 | ❌ Broken | 🚀 Very Fast | Non-security checksums | 128 bits (32 chars) |
| CRC32 | ❌ None | 🚀 Very Fast | Error detection | 32 bits (8 chars) |
| xxHash64 | ❌ None | 🚀 Extremely Fast | Fast checksums | 64 bits (16 chars) |
Recommendation: Use SHA-256 or higher for security-critical tasks. Avoid MD5 and SHA-1 for passwords or sensitive data.
Is this file hash generator safe to use?
Yes. All hashing is performed locally in your browser. Files are never uploadedto any server, ensuring full privacy and security.
Are my files uploaded or stored anywhere?
No. Your files never leave your device. The tool works entirely client-sideusing JavaScript.
Is there any file size or file count limit?
here are no enforced limits. Performance depends only on your device CPU,memory, and browser capabilities.
Which hash algorithms are supported?
The tool supports SHA-1, SHA-256, SHA-384, SHA-512, SHA3-256, MD5, CRC32,BLAKE3, and xxHash64.
Can I hash multiple files at once?
Yes. You can hash multiple files or entire folders in bulk using one or multiple algorithms with a single click.
Can I verify file integrity using this tool?
Yes. You can compare expected hash values with computed hashes to verifyfile integrity and detect tampering.
What output formats are available?
Hash results can be exported as TXT, JSON, CSV, or CLI-compatible plain text,depending on single or bulk mode.
Does this tool work on all browsers?
The tool works on all modern browsers that support Web Crypto andmodern JavaScript APIs.