Tech Tools
24 free tech tools — no sign-up, no ads, works instantly in your browser.
AI Assistant
Chat with PrimeUtil AI: local shortcuts for common tasks, plus optional Groq/OpenRouter for everything else — with tool-backed math and links to full tools.
Base64 Encoder/Decoder
Encode text or files to Base64 and decode Base64 strings online instantly.
Password Generator
Generate secure random passwords with custom length, symbols, and strength meter.
JSON Formatter
Format, validate, and minify JSON with syntax highlighting and error details.
Image to Base64
Convert images to Base64 strings and preview Base64 as images.
MD5 / Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes for text or files.
JWT Decoder
Decode and inspect JWT tokens — view header, payload, and expiry status.
Lorem Ipsum Generator
Generate placeholder text in paragraphs, words, or sentences with multiple styles.
URL Encoder/Decoder
Encode or decode URLs and query strings with component encoding support.
Regex Tester
Test regular expressions online with live match highlighting and capture groups.
UUID Generator
Generate cryptographically random UUID v4 values. Bulk generate and copy instantly.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.
Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal instantly.
Diff Checker
Compare two blocks of text side-by-side and highlight differences line by line.
HTML Formatter
Format and minify HTML with syntax highlighting.
XML Formatter
Format, validate, and minify XML with syntax highlighting.
HTML Entity Encoder / Decoder
Encode and decode HTML entities and escape special characters.
CSV ↔ JSON Converter
Convert CSV to JSON and JSON arrays back to CSV instantly.
Cron Expression Validator & Builder
Validate cron expressions, build schedules visually, and see next run times — no guesswork.
HTTP Status Codes
Search and look up HTTP status codes with descriptions and tips.
Test Data Generator
Generate realistic fake test data: names, emails, phones, and more.
String Escape / Unescape
Escape and unescape strings for JSON, URL, HTML, SQL, and regex.
Markdown Preview
Write Markdown and see an instant formatted preview in your browser.
API Tester
Send HTTP requests and inspect responses right from your browser — like Postman, no install needed.