Explore our complete collection of free cybersecurity tools.
Test regular expressions with real-time matching, capture group highlighting, and match explanations.
Format, validate, and beautify JSON data with syntax highlighting. Minify or pretty-print with one click.
Convert between Unix timestamps and human-readable dates. Supports seconds, milliseconds, and ISO 8601 formats.
Compare two texts and visualize differences with highlighted additions, deletions, and modifications.
Generate customizable QR codes for URLs, text, WiFi, and more. Download in PNG or SVG format.
Generate cryptographically secure UUID v4 identifiers. Create single or multiple UUIDs with formatting options, all processed in your browser.
Convert colors between HEX, RGB, and HSL formats in real time. Includes a live color preview swatch and native color picker for easy selection.
Parse cron expressions into human-readable descriptions. View next execution times and use preset schedules for common patterns.
Write Markdown and see it rendered as HTML in real time. Supports headings, formatting, code blocks, links, lists, blockquotes, and images.
Generate Lorem Ipsum placeholder text in paragraphs, sentences, or words. Customize the amount and choose whether to start with the classic opening.
Calculate Unix file permissions interactively. Convert between numeric (755) and symbolic (rwxr-xr-x) notation with a visual checkbox grid.
Convert between YAML and JSON formats instantly. Supports nested objects, arrays, strings, numbers, and booleans with real-time conversion.
Paste a cURL command and convert it to Python (requests), JavaScript (fetch), PHP (curl), Go (net/http), or Java (HttpURLConnection) code.
A searchable library of 50+ common regex patterns. Browse by category, test against sample input, and copy patterns for email, URL, IP, dates, passwords, and more.
