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Free online tools for developers — Cron, JWT, Webhook, Regex, JSON, Base64 and more. No ads, no signup, just work.
Schedule database backups, log rotation, and CI/CD pipelines with visual cron expressions.
Decode, verify, and generate tokens for stateless authentication and API authorization.
Debug GitHub, Stripe, and Slack integrations by capturing webhook requests in real time.
Validate emails, extract data from logs, and build patterns with real-time highlighting.
Validate, format, and explore API responses and configuration files with a tree viewer.
Encode images, decode tokens, and prepare data for data URIs and email attachments.
Convert Unix timestamps for API debugging, log analysis, and timezone-safe development.
Generate UUIDs for database keys, session tokens, API resources, or distributed system IDs.
Compute SHA-256 and MD5 hashes for file integrity, password verification, and data dedup.
Convert Kubernetes manifests, Docker Compose, and CI/CD configs between YAML and JSON.
Compare code revisions, detect config drift, and review changes before merge.
Pick accessible palette colors for UI design with instant HEX, RGB, and HSL previews.
Format and minify SQL queries for better readability in code reviews and debugging.
Encode/decode URL parameters and HTML entities. Prevent XSS attacks and broken links.
Convert CSV data to JSON and back. Perfect for data migration and API testing.
Find geolocation, ISP, and proxy status for any IP address.
Analyze password security with real-time scoring and suggestions.
Browse all HTTP response codes with descriptions and categories.
Write and preview Markdown in real time.
Compare current time across multiple timezones worldwide.
Calculate days between dates or add days to a date.
Browse and copy common Git commands by category.
Query DNS records (A, AAAA, MX, CNAME, NS, TXT) for any domain.
Generate QR codes from text, URLs, or any content.
Convert numbers between binary, octal, decimal, and hexadecimal.
Convert text between camelCase, PascalCase, snake_case, and more.
Generate placeholder text in words, sentences, or paragraphs.