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JSON Formatter
Format, validate and beautify JSON directly in the browser for debugging, APIs and quick payload review.
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Developer
Technical utilities for data, debugging and daily development tasks.
This category groups technical tools that save time during small but repeated developer tasks. It is useful for formatting payloads, encoding values, generating IDs, testing regexes and handling data that moves between code, APIs and logs.
What you will find in this category
- JSON formatting and minification tools
- Encoding, decoding and hashing utilities
- UUID and identifier helpers
- Regex and debugging oriented tools
All available tools
DeveloperFeatured
JSON Minifier
Minify and validate JSON directly in the browser for smaller payloads, transport and embedding.
Open toolDeveloper
Base64 Decode
Decode Base64 strings back to plain text online for free.
Open toolDeveloper
Base64 Encode
Encode plain text to Base64 online for free in seconds.
Open toolDeveloper
UUID Generator
Generate UUID v4 values online for free for testing, databases and development.
Open toolDeveloper
Hash Generator
Generate MD5 and SHA-256 hashes from plain text online for free.
Open toolDeveloper
URL Encoder / Decoder
Encode and decode URL values directly in the browser for free.
Open toolDeveloper
Regex Tester
Test JavaScript regular expressions against sample text online for free.
Open toolWhen to use these tools
- When inspecting payloads, requests or configuration values
- Before copying data between systems or environments
- During debugging, API work or cleanup tasks
- When you need a quick developer utility without opening an IDE plugin
Articles and practical guides
Developer3 min
Common Base64 decoding errors and how to fix them
A practical guide to invalid Base64 input, padding mistakes, wrong characters and other decoding issues you may hit in real workflows.
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When Base64 decoding is actually useful
A practical guide to Base64 decoding, readable output, and why decoding helps inspect payloads, APIs and text based integrations.
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Base64 decode vs Base64 encode: when to use each one
A practical guide to the difference between Base64 decode and Base64 encode, and when each one fits a real workflow.
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When Base64 encoding is actually useful
A practical guide to Base64 encoding, ASCII safe transport, and why this format appears so often in APIs and debugging workflows.
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Base64 encode vs URL encode: when to use each one
Learn the difference between Base64 encoding and URL encoding, and choose the right one for transport, query strings and web workflows.
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Common hash generator mistakes that lead to bad comparisons
A practical guide to the most common hash mistakes, including encryption confusion, broken comparisons and altered input.
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