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Technical guides and tool tutorials for developers

Tutorial2026-04-05

How to Create a QR Code: A Complete Guide

Learn how QR codes work, their benefits, and how to easily generate them for free with InoTools' QR Code Generator.

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Tutorial2026-03-22

What is File Encryption? How to Securely Encrypt Files in Your Browser

Learn how file encryption works and how to securely encrypt and decrypt files entirely within your browser using InoTools.

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Tutorial2026-03-14

What is JWT? Understanding JSON Web Tokens

Learn how JWT works, its structure, and how to decode tokens securely with InoTools' JWT Decoder.

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Tutorial2026-03-14

What is a Unix Timestamp? Date Conversion Explained

Learn how Unix timestamps work, where they're used, and how to convert between timestamps and dates with InoTools.

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Tutorial2026-03-14

What is URL Encoding? A Guide to Percent-Encoding

Learn how URL encoding works and how to safely handle special characters in URLs with InoTools' URL Encoder/Decoder.

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Tutorial2026-03-14

How to Count Characters: Measure Words, Lines & Bytes Accurately

Count characters, words, lines, and bytes in real-time with InoTools' free browser-based Word & Character Counter.

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Tutorial2026-03-12

What is OCR? Extract Text from Images Instantly

Learn how OCR works and how to extract text from images using InoTools' AI-powered OCR tool.

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Tutorial2026-03-11

What is Base64 Encoding? A Complete Guide

Learn how Base64 encoding works and how to use InoTools' Base64 Encoder/Decoder to safely convert data.

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Tutorial2026-03-11

What Are Hash Functions? How They Secure Your Data

Learn how MD5, SHA-256, and other hash functions work, and how to generate hashes instantly with InoTools.

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Tutorial2026-03-11

How to Generate Secure Passwords: A Complete Guide

Learn what makes a password strong and how to generate secure passwords instantly with InoTools' Password Generator.

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Tutorial2026-03-11

What is UUID? Understanding Unique Identifiers

Learn what UUIDs are, how they differ from GUIDs, and how to generate them instantly with InoTools' UUID Generator.

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Tutorial2026-03-11

Image Optimization for the Web: Compression and Resizing Fundamentals

Learn how image optimization works and how to improve your website's loading speed with InoTools' Image Optimizer.

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Tutorial2026-03-10

What is JSON Formatting and Why Does It Matter?

Learn how JSON formatting works and how InoTools' JSON Formatter can help you work with JSON data more efficiently.

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