Hash Generator

A hash is a fixed-length string generated from input data using a one-way mathematical function. Hashes are used to verify file integrity (checksums), store passwords securely, generate digital signatures, and create unique identifiers for data. The same input always produces the same hash output.

Type or paste your text into the input area. Select the hash algorithm (MD5, SHA-1, SHA-256, or SHA-512). The hash is computed instantly and displayed in the output field. Click Copy to clipboard to use the hash in your application or verification process.

MD5 produces a 128-bit hash and is fast but considered cryptographically broken for security uses. SHA-1 (160-bit) is also deprecated for security. SHA-256 (256-bit) is the current standard for most security applications. SHA-512 (512-bit) offers even more collision resistance. Use SHA-256 or SHA-512 for any security-critical purpose.

Yes. Switch to File mode, upload your file, and the hash is computed directly in your browser without uploading the file to any server. This lets you verify the integrity of downloaded files by comparing the generated hash with the official checksum provided by the software developer.

Download the file and the official checksum (MD5 or SHA-256) from the developer's website. Upload the file to our Hash Generator, select the matching algorithm, and compare the generated hash with the official one. If they match exactly, the file is authentic and unmodified.

No. Hashing is a one-way function — it is mathematically infeasible to derive the original input from the hash output. This is what makes hashes suitable for password storage (storing the hash, not the password). However, short or common inputs can be looked up in rainbow tables, which is why password hashing should use salted algorithms like bcrypt.

You can generate a basic hash of any string, including passwords. However, for storing passwords in databases, use dedicated password hashing algorithms like bcrypt, scrypt, or Argon2 (which add salting and key stretching) rather than raw MD5 or SHA-256. This tool is best for checksums, data verification, and developer testing.

No. All hashing is performed locally in your browser using the Web Crypto API (`window.crypto.subtle`). Your text and files never leave your device. This makes the tool safe for generating hashes of sensitive data.

Yes. The tool works in any mobile browser. Type your text or upload a file from your device, select the algorithm, and the hash is computed instantly on your phone without any server communication.

Yes. The Hash Generator is 100% free with no usage limits, no sign-up, and no file size restrictions for text inputs. File hashing may be limited to reasonable file sizes for in-browser processing.