Niuma Tools
Sharpen your tools, empower your work
— Equipping every worker with the best utilities.
Programming
18 features ready
JSON Formatter
Format, minify, and validate JSON data instantly.
SQL Formatter
Beautify and format SQL queries.
XML Formatter
Format and minify XML code.
JWT Decoder
Decode JWT tokens to view Header and Payload.
Base64 Converter
Encode text to Base64 or decode Base64 back to text.
URL Encode/Decode
Safely encode or decode URLs and query parameters.
Regex Tester
Test and debug regular expressions online.
UUID Generator
Batch generate random UUIDs (v4).
Password Generator
Generate high-security random passwords locally.
Time Converter
Convert between Unix timestamps and Local/UTC time.
Hash Generator
Generate SHA-1, SHA-256 and other hashes for text.
Text Counter
Count characters, words, lines, and paragraphs in real-time.
Case Converter
Convert text between camelCase, snake_case, kebab-case, and other formats instantly.
MD5 Generator
Generate 16-bit or 32-bit MD5 hashes quickly.
Bcrypt Hashing
Generate Bcrypt hashes or verify if a plaintext string matches a hash.
RSA Key Generator
Generate RSA public and private key pairs of various bit lengths locally.
Code Diff
Highlight differences between two blocks of code or text.
Markdown Preview
Real-time Markdown preview and HTML export.
AI
3 features ready
DevOps
6 features ready
Crontab Generator
Generate and parse Cron expressions quickly.
YAML ⇋ JSON
Bi-directional conversion between YAML and JSON.
IP Lookup
Get client IP address or query geographical location and coordinates for a given IP.
Port Scanner
Scan ports of a specified host or IP address locally in the browser. Supports common presets and custom ranges.
MAC Address Lookup
Look up manufacturer and company information by MAC address.
IPv4 Subnet Calculator
Calculate subnet masks, network ranges, broadcast addresses, and detailed CIDR info.
Design
8 features ready
Color Converter
Convert colors between HEX, RGB, HSL, HWB, LCH, CMYK, and CSS names.
Image Processor
Watermark, compress, and crop images (frontend only).
App Icon Generator
Generate Web, iOS, and Android standard icons.
AI Background Removal
Frontend AI background removal using RMBG model.
AI Image Upscaler
Enhance image resolution and clarity using AI.
QR Code Generator & Reader
Generate customized QR codes with logos and decode QR images locally.
File ↔ Base64
Convert any file to Base64 or decode Base64 back to file offline.
SVG Placeholder
Generate custom SVG placeholder images with custom dimensions, colors, and text.
Video
1 features ready
Documents
2 features ready
Psychology
2 features ready