DevToolbox: JSON, Time & Regex

TipTinker

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About this app

DevToolbox packs the developer checks you reach for every day into one small app, so you can format a payload, test a pattern or decode a token without opening a laptop.

• Format, validate, minify and sort JSON, convert it to YAML, and query it by path
• Test regular expressions live with highlighted matches, capture groups and replace
• Compare two texts by line or word and see exactly what changed
• Convert Unix timestamps (seconds to nanoseconds) and dates in any time zone, chosen from a searchable list
• Build and read cron schedules, including @daily-style macros, and see the next run times
• Hash text with MD5, SHA-1, SHA-2 and CRC32, or compute an HMAC with your own key
• Generate UUID v4 and v7, ULID and NanoID, one or a whole batch at a time
• Decode a JWT and read its dates, or sign a new HS256, HS384 or HS512 token; signatures are never verified
• Pick a color on a wheel, convert it between HEX, RGB, HSL, HSV and CMYK, and check WCAG contrast against white, black or a background of your choice
• Make Lorem ipsum, random strings and fictional test contacts
• Look up HTTP status codes, MIME types and common ports
• Copy any result with one tap

What’s new

Performance improvements and bug fixes