Free, fast, privacy-first online tools for developers and DevOps engineers. No signup, no tracking, no nonsense.
Check SSL certificate details, expiry date, issuer, and chain validity for any domain.
Use Tool →Format, validate, and beautify JSON data. Also minify and compress JSON strings.
Use Tool →Encode text to Base64 or decode Base64 back to readable text. Supports UTF-8.
Use Tool →Generate cron expressions visually. Preview next run times for any schedule.
Use Tool →Generate strong, secure passwords with custom length, symbols, and character sets.
Use Tool →Find your public IP, location, ISP, and browser info. Uses ipapi.co for accurate geolocation.
Use Tool →Encode or decode URLs and query parameters. Supports full URI encoding and component encoding.
Use Tool →Generate UUID v4, v7 (time-sortable), and ULIDs. Bulk generate up to 100 at once.
Use Tool →Test regular expressions against text with real-time matching, capture groups, and all flags.
Use Tool →Write Markdown and see live HTML preview. Supports headings, code blocks, tables, and more.
Use Tool →Compare two texts side by side with highlighted additions, deletions, and changes.
Use Tool →Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and ms.
Use Tool →Generate MD5, SHA1, SHA256, SHA512 hashes. All processing happens client-side in your browser.
Use Tool →Encode or decode HTML entities. Convert <, >, &, quotes and special characters.
Use Tool →Convert text between UPPER, lower, Title, camelCase, snake_case, kebab-case, and more.
Use Tool →Convert between binary, octal, decimal, and hexadecimal. Check ASCII and bit length.
Use Tool →Convert colors between HEX, RGB, and HSL formats with interactive color picker.
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