Encode and decode Base64 strings instantly
Open ToolEssential developer utilities for everyday coding tasks. Encode data, format JSON and YAML, generate UUIDs and secure passwords, calculate network ranges, and more. All tools run entirely in your browser for maximum privacy and speed.
Encoding & Formatting
Format, validate and beautify JSON data
Open Tool
Validate, format, and beautify YAML with syntax error detection
Open ToolSecurity
Generate secure passwords, memorable passphrases, and PINs
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Analyze password strength with entropy estimation and crack time
Open ToolDevOps & Infrastructure
Generate random UUIDs, validate, and convert between formats
Open Tool
Convert between Unix timestamps and human-readable dates
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Validate cron expressions and preview upcoming execution times
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Calculate IP ranges, subnet masks, and network information
Open ToolComing Soon
Frequently Asked Questions
Are these tools really free?
Yes, all tools are completely free to use with no hidden costs, subscriptions, or premium tiers. We believe developer tools should be accessible to everyone.
Is my data safe when using these tools?
Absolutely. All tools run entirely in your browser using JavaScript. Your data is never sent to any server. You can verify this by checking your browser's network tab or using the tools offline.
Do I need to create an account?
No account is required. All tools work instantly without registration, login, or any personal information. Just open a tool and start using it.
Can I use these tools offline?
Most tools work offline after the initial page load since they run entirely in your browser. Bookmark your favorite tools for quick access anytime.