Solve Digital Problems in Seconds
Fast, reliable, and beautifully designed online tools to help you complete everyday digital tasks without the frustration.
Lightning Fast
Tools load instantly and work in real-time. No waiting, no delays.
Privacy First
Your data stays in your browser. We never upload or store your information.
Mobile Friendly
Works perfectly on any device. Desktop, tablet, or phone.
Save Time
Find what you need in seconds. No registrations, no distractions.
Browse by Category
Find the perfect tool for your needs
Developer Tools
Tools for developers to format, validate, and convert code and data
Productivity Tools
Tools to boost your productivity and streamline workflows
Business Tools
Calculators and utilities for business operations
Student Tools
Academic calculators and study utilities
Designer Tools
Tools for designers to work with images, colors, and graphics
All Free Online Tools (27)
Every tool is free, private and works instantly in your browser
Developer Tools
View all →JSON Formatter
Format, validate, and beautify JSON data with syntax highlighting
Base64 Encoder/Decoder
Encode and decode Base64 strings quickly and accurately
UUID Generator
Generate UUIDs in multiple versions (v1, v3, v4, v5)
Password Generator
Generate strong, secure passwords with customizable options
SQL Formatter
Format and beautify SQL queries with proper indentation
Regex Tester
Test and debug regular expressions with real-time matching
JWT Encoder/Decoder
Encode and Decode JSON Web Tokens (JWT)
Timestamp Converter
Convert between Unix timestamps and human-readable dates
CSV/JSON Converter
Convert between CSV and JSON formats with a single tool
HTML Formatter
Format, beautify, and minify HTML code
JSON ↔ YAML Converter
Convert between JSON and YAML formats with a single tool
JSON Diff
Compare two JSON documents and visualize differences
JSON ↔ TypeScript
Generate TypeScript interfaces from JSON data
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes
Productivity Tools
View all →QR Code Generator
Generate QR codes for text, URLs, and more
Word Counter
Count words, characters, sentences, and paragraphs
Case Converter
Convert text between uppercase, lowercase, title case, and more
PDF Tools
Extract information and text from PDF files
Text Tools
Remove duplicates, sort lines, find and replace text
Discount Calculator
Calculate discounts, sale prices, and savings
Student Tools
View all →Free Online Tools for Developers, Students and Everyone
NeXiilo gives you 27 free online tools that run entirely in your browser. No sign-up, no uploads, no tracking — paste your input, get instant results.
Developer Tools
Format and validate data with our JSON Formatter, Base64 Encoder, Regex Tester and JWT Decoder. Convert payloads with CSV to JSON and JSON to YAML. Browse all developer tools.
Productivity, Business and Study Tools
Generate codes with our QR Code Generator, count text with Word Counter, calculate tax with GST Calculator and check health with BMI Calculator. See productivity, business, student and designer categories, or browse all 27 tools.
Step-by-Step Guides
New to a topic? Read our step-by-step guides: how to format JSON with beautify, validate and minify examples, and how to calculate GST in India with 5%–28% slab formulas. Each guide links straight into the free tool so you can try it instantly.
Frequently Asked Questions
Everything you need to know about NeXiilo
Is NeXiilo really free?
Yes, all tools on NeXiilo are completely free to use. There are no hidden costs, premium tiers, or subscription fees. We believe in providing free access to essential tools for everyone.
Do I need to create an account?
No, you don't need to create an account or sign up to use any of our tools. Simply visit the website and start using the tools immediately. No registrations, no personal information required.
Is my data safe?
Absolutely. All processing happens in your browser using client-side technology. Your data never leaves your device and is never uploaded to our servers. We prioritize your privacy above everything else.
Can I use these tools offline?
Yes, most tools work offline after your first visit. Since all processing happens in your browser, you can use the tools even without an internet connection once the page has loaded.
Do you offer APIs for developers?
Currently, our tools are designed for direct use through the website. However, you're welcome to use the browser's developer tools to interact with the tools programmatically. Check out our About page for more information about our technology stack.
How can I report a bug or request a feature?
We'd love to hear from you! Visit our Contact page to get in touch with our team. We're constantly improving our platform based on user feedback.