DevUtils
All-in-one toolkit
Text
Text Converter
Transform, clean & convert text
Diff Viewer
Compare two texts and highlight changes
Data
JSON Converter
Validate, format, auto-fix & convert JSON
Object Key Converter
Transform field names and formats
Mock API Generator
Create stateless dummy API JSON responses
Dev Tools
JWT Decoder
Decode & inspect JWT tokens
Code Formatter
Beautify, indent, and format code
HTML Editor
Edit and preview HTML & CSS in real-time
Utility
QR Generator
Generate QR codes for URLs, text, and more
ATS Resume Builder
Build a single-column, ATS-friendly resume online
Learn
DSA
Interactive Data Structures & Algorithms visualizers
HTTP Codes
HTTP Status Codes
Diff Workspace
Lines
Words
Chars
Split
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Aa
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Export
Original
A
6 lines
Copy
{ "name": "Alice", "age": 28, "role": "developer", "active": true }
Modified
B
7 lines
Copy
{ "name": "Alice Smith", "age": 29, "role": "senior developer", "active": true, "team": "backend" }
Diff Results
lines mode
+5
−4
Copy Diff
#
Original (A)
#
Modified (B)
1
{
1
{
2
"name": "Alice",
2
"name": "Alice Smith",
3
"age": 2
8
,
3
"age": 2
9
,
4
"role": "
developer",
4
"role": "
senior
developer",
5
"active": true
5
"active": true
,
6
}
6
"team": "backend"
7
}
Added
Removed
Unchanged