Developer Tools Guide
SheetEdit Tools offers free online dev tools for JSON handling, encoding/decoding, hashing, regex, and more. All tools run in your browser; no data is uploaded to our servers. This guide covers use cases and tips for each tool.
What are these developer tools?
These developer tools are small in-browser utilities for everyday tasks: formatting JSON, comparing configs, encoding text, generating UUIDs, testing regex, and converting naming styles. They replace one-off scripts or heavy desktop apps when you only need a quick check—everything runs locally in your tab.
Tool overview
JSON tools
- JSON Format: Format and minify JSON with syntax highlighting for readability and debugging.
- JSON Validate: Check JSON syntax and locate errors.
- JSON Diff: Compare two JSON documents and highlight additions, deletions, and changes.
- File Diff: Compare two plain-text files or pasted text line by line (not JSON-specific). See the File Diff guide.
Encode/decode
- Base64: Convert between text and Base64. Common for APIs and image embedding.
- URL Encode/Decode: Encode and decode URL special characters.
- HTML Entity: Encode/decode HTML entities (e.g.,
&,<).
Generate & parse
- UUID Generator: Generate UUID v4 for unique identifiers.
- Hash: MD5, SHA-1, SHA-256, SHA-384, SHA-512.
- JWT Decoder: Parse JWT payloads (no signature verification) to view claims.
Text tools
- Regex Tester: Test regular expressions and view matches.
- Lorem Ipsum: Generate placeholder text.
- Case Converter: Convert between camelCase, snake_case, kebab-case, etc.
- Text Stats: Word, line, and character counts.
- JSON ↔ YAML: Convert between JSON and YAML.
Usage tips
- JSON debugging: Validate first, then format for readability, use Diff to compare versions.
- API development: Use Base64 and URL encode/decode for request params; JWT decoder to inspect tokens.
- Data conversion: Use JSON↔YAML to switch between config formats.
- Naming conventions: Use case converter to standardize variable names.
All processing runs in your browser. No data is uploaded to our servers.
Browse more guides and tutorials at the Article Index.