DevHub Developer Toolkit
Essential utilities for modern software engineering
JSON Compare
Visual diff master for JSON documents. Auto-repair and beautify features included.
JSON to CSV
Flatten complex JSON data and export to CSV/Excel format instantly.
JWT Decoder
Inspect header and payload of your JSON Web Tokens (JWT) securely.
Base64 Tools
Reliable Base64 encoding and decoding for text strings and data snippets.
Regex Tester
Real-time regular expression tester with visual match highlighting and flags.
JSON DiffMaster
Smart Comparison • Auto-Repair • Developer Ready
JSON ALPHA
Ready
JSON BETA
Ready
Results
JSON Comparison
JSON comparison helps identify differences between two JSON objects or API responses. When working with APIs, configuration files, or data pipelines, even small differences in JSON structure can cause unexpected behavior.
This JSON Compare Tool allows users to quickly detect:
- Added fields
- Removed fields
- Modified values
- Structural changes in nested JSON
Instead of manually scanning large JSON responses, the tool highlights differences automatically so users can easily see what changed.
Typical Use Cases
JSON comparison is commonly used when:
- Testing API responses
- Comparing data between environments
- Debugging backend services
- Reviewing configuration changes
- Validating data transformations
Users can paste two JSON objects and immediately view the differences.
JSON to CSV Converter
INPUT
Ready
Preview
JSON to CSV Conversion
JSON to CSV conversion transforms structured JSON data into a tabular CSV format that can be opened in spreadsheet applications such as Excel or Google Sheets.
Many APIs return data in JSON format, while spreadsheets and reporting tools commonly use CSV.
Typical Use Cases
JSON to CSV conversion is useful when users need to:
- Import API data into spreadsheet tools
- Analyze datasets in tabular format
- Prepare structured data for reporting
- Export JSON records into CSV format
This tool converts JSON arrays into CSV format that can be copied or downloaded.
JWT Decoder Online
TOKEN
Ready
HEADER
PAYLOAD
JWT Decoder
A JWT (JSON Web Token) decoder is used to inspect and decode tokens used in authentication systems. JWT tokens contain encoded information such as user identity, permissions, and expiration details.
JWT tokens are commonly used in authentication and authorization systems.
Typical Use Cases
Developers decode JWT tokens to:
- Inspect authentication payloads
- Verify token expiration times
- Review token header and payload information
- Debug login or authorization flows
This tool decodes JWT tokens directly in the browser so the header and payload can be viewed clearly.
Base64 Encoder & Decoder
TEXT
BASE64
Base64 Encoding and Decoding
Base64 encoding converts binary data into a text format that can be transmitted safely through systems that handle text-based data.
Base64 is widely used for encoding data in web applications and APIs.
Typical Use Cases
Base64 encoding and decoding is commonly used to:
- Decode encoded API data
- Convert binary data to text format
- Inspect encoded headers or tokens
- Embed files such as images into text-based formats
This tool allows users to quickly encode or decode Base64 strings.
Regex Tester & Debugger
PATTERN
Ready
TEST STRING
Results
Regular Expression Tester
A Regular Expression (Regex) Tester allows users to test and validate regular expression patterns used for pattern matching in text.
Regular expressions are commonly used in programming, validation, and text processing.
Typical Use Cases
Regex testing helps users:
- Validate text patterns
- Match specific string formats
- Test search expressions
- Debug regular expression syntax
This tool allows users to test regex patterns against sample text and view matching results.
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