Hash Generator
Paste or type any text and instantly generate its SHA-1, SHA-256, and SHA-512 hash digests using your browser's built-in cryptography — nothing is uploaded, everything runs locally on your device.
How it works
Type or paste any text into the field, and the tool immediately computes its SHA-1, SHA-256, and SHA-512 hash digests using your browser's native Web Crypto API. Each hash updates live as you type, and you can copy any of them with one click.
Tip
SHA-256 is the most widely used of the three for things like verifying file integrity or generating unique identifiers; SHA-1 is considered weak for security purposes but still shows up in older systems, while SHA-512 offers a longer digest for extra collision resistance.
Is my text sent anywhere?
No — every hash is computed entirely inside your browser using the Web Crypto API. Your text never leaves your device or gets sent to any server.
More tools in this category
Regex Tester
Test regular expressions against sample text with live match highlighting.
Cron Expression Parser
Parse a 5-field cron expression into a plain-language schedule and see its next run times.
Text Encoding Converter
Convert text to UTF-8 hex, binary, code points, Base64, URL encoding and HTML entities at once.
Password Generator
Generate strong, random passwords instantly, right in your browser.
JSON Formatter & Validator
Format, validate, and minify JSON instantly in your browser.
UUID Generator
Generate random, RFC 4122 version 4 UUIDs instantly in your browser.
JWT Decoder
Decode and inspect JSON Web Tokens (JWTs) instantly in your browser.
Diff Checker
Compare two blocks of text and instantly see every line that was added or removed.
Slug Generator
Turn any text into a clean, URL-friendly slug in real time.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly.
Unix Timestamp Converter
Convert Unix timestamps to dates and dates to Unix timestamps, live.
Box Shadow Generator
Design a CSS box-shadow visually with live sliders and a color picker, then copy the generated declaration.
Cron Expression Builder
Build a valid 5-field cron expression from a friendly form — no need to memorize the syntax.
Lorem Ipsum Generator
Generate placeholder Lorem Ipsum text by paragraphs, sentences, or words for mockups and layouts.
Markdown Previewer
Write Markdown on the left and see the rendered HTML update live on the right.
IP Subnet Calculator
Enter an IPv4 address in CIDR notation and get its network, mask, broadcast, and host range.
HTTP Status Code Lookup
Look up any HTTP status code and see its standard meaning in plain English.
SQL Formatter
Pretty-print minified or messy SQL into readable, indented statements.
Image to Base64 Converter
Convert an image into a Base64 data URI you can paste straight into HTML, CSS, or JSON — entirely in your browser.
Semver Comparator
Compare two semantic version strings and see which one takes precedence, following the official semver rules.