UUtilityApp
⚙️

Developer Tools

Format, validate, encode and decode — JSON formatter, JWT decoder, Base64, hash & UUID generators and more.

17 free tools · no sign-up · works in your browser

Random Number Generator

Generate random numbers within any min–max range, with options for uniqueness and how many to produce.

Lorem Ipsum Generator

Generate placeholder Lorem Ipsum text by paragraphs, sentences or words for mockups and designs.

Unix Timestamp Converter

Convert Unix epoch timestamps to human-readable dates and back, in your local time or UTC.

JWT Decoder

Decode a JSON Web Token to inspect its header and payload claims. Decoding happens locally — your token never leaves the page.

SQL Formatter

Format messy SQL — uppercase keywords, clause-per-line layout and indented conditions — instantly and locally.

Password Generator

Create strong, random passwords with control over length, numbers, symbols and uppercase. Generated locally — never sent anywhere.

Strong Password Generator

Generate hard-to-crack passwords up to 64 characters with full symbol and entropy control.

Random Token / API Key Generator

Generate secure random tokens and API-key-style strings using the browser's crypto API.

UUID Generator

Generate random version-4 UUIDs (GUIDs) one at a time or in bulk, with optional uppercase and no-dashes formats.

Random String Generator

Generate random alphanumeric strings of any length for IDs, tokens and test data.

HTML Minifier

Minify HTML by removing comments and collapsing whitespace between tags.

MD5 Hash Generator

Generate an MD5 hash from any text or string.

JSON to TypeScript Converter

Paste JSON, get a TypeScript interface — field types inferred automatically, nested objects included.

Hash Generator (MD5, SHA-1, SHA-256, SHA-512)

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes of any text instantly in your browser.

CSS Minifier

Minify CSS by stripping comments and whitespace — paste stylesheet, copy the smaller output.

SHA-256 Hash Generator

Generate a secure SHA-256 hash of any input text.

URL Query String Parser

Parse the parameters out of any URL or query string into clean, readable JSON — repeated keys become arrays.

More tools coming soon

Validated, high-intent tools from our research catalog that are on the build roadmap.

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