( ✦ )Field notes

The journal.

31 hand-written guides covering writing, images, data, security, and the developer toolkit. No paywalls, no fluff — every entry pairs with a free tool.

31 entriesNo paywallsNo sign-up

Guidesfeatured · latest entry

The Ultimate Guide to Quill Tools: Free Online Productivity Suite

Discover how Quill Tools can streamline your writing, image editing, data conversion, and more. A comprehensive guide to every free tool available.

Quill Tools Team·Feb 18, 2026·12 min read

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01Guides

The Ultimate Guide to Quill Tools: Free Online Productivity Suite

Discover how Quill Tools can streamline your writing, image editing, data conversion, and more. A comprehensive guide to every free tool available.

Feb 18, 2026·12 min read

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02Career

How to Build an ATS-Friendly Resume for Free in 2026

Step-by-step guide to creating a professional, ATS-optimised resume using Quill Tools' free CV builder. Includes templates, tips, and examples.

Feb 18, 2026·9 min read

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03Tutorials

QR Code Generator: Complete Tutorial & Use Cases (2026)

Learn how to create free QR codes for URLs, contact cards, Wi-Fi, and more. Step-by-step guide with real-world use cases for business and personal projects.

Feb 18, 2026·8 min read

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04Tutorials

Free Online Image Editing Tools: Compress, Convert & Remove Backgrounds

Master browser-based image editing with Quill Tools. Learn to compress images, convert formats, and remove backgrounds using on-device AI — all for free.

Feb 18, 2026·10 min read

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05Developer

JSON to CSV Converter: Developer's Guide to Data Conversion in 2026

Convert JSON, CSV, XML, and YAML formats effortlessly with Quill Tools. A developer-focused guide to data conversion best practices and use cases.

Feb 18, 2026·8 min read

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06Developer

How to Format and Validate JSON Online in Seconds

Learn how to use a free JSON formatter to beautify, validate, and debug JSON data instantly in your browser. Includes tips for developers and API testing.

Mar 8, 2026·5 min read

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07Image

How to Compress Images Without Losing Quality (Free Tools)

A practical guide to compressing images online for free. Learn how to reduce image file sizes by up to 80% for faster websites using browser-based tools.

Mar 8, 2026·6 min read

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08Developer

15 Best Free Online Developer Tools in 2026

Discover the best free browser-based developer tools of 2026. From JSON formatters and Base64 encoders to JWT decoders and regex testers — all with no signup required.

Mar 8, 2026·10 min read

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09Security

How to Generate and Use Strong Passwords (Free Generator)

Learn what makes a password strong and how to generate cryptographically secure passwords for free. Includes tips on password length, character types, and managers.

Mar 8, 2026·7 min read

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10Image

How to Remove Image Background Online for Free

A step-by-step guide to removing image backgrounds online using free AI-powered tools. Get transparent PNG cutouts without any software installation.

Mar 8, 2026·5 min read

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11Developer

What Is Base64 Encoding? How to Encode and Decode Online

A plain-English explanation of Base64 encoding and when to use it. Learn how to encode text, files, and images to Base64 for free in your browser.

Mar 8, 2026·6 min read

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12Developer

How to Decode a JWT Token (And What's Inside)

A developer's guide to understanding and decoding JSON Web Tokens (JWT). Learn what each part of a JWT contains and how to inspect tokens safely.

Mar 8, 2026·7 min read

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13Developer

How to Test Regular Expressions Online — Regex Guide

A practical guide to testing and debugging regular expressions with an online regex tester. Covers patterns, flags, capture groups, and common use cases.

Mar 8, 2026·8 min read

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14Developer

How to Convert JSON to CSV Online (Free, Instant)

Learn how to convert JSON arrays to CSV format online for free. Step-by-step guide with tips on handling nested objects, delimiters, and large datasets.

Mar 8, 2026·5 min read

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15Writing

How to Count Words, Characters & Reading Time Free

Learn how to use a free online word counter to track word count, character count, sentences, paragraphs, and estimated reading time for any text.

Mar 8, 2026·4 min read

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16Developer

URL Encoding Explained: How to Encode & Decode URLs Free

A complete guide to URL percent-encoding. Learn when and why to URL-encode strings, how special characters work, and how to encode or decode URLs free in your browser.

Mar 10, 2026·6 min read

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17Developer

UUID vs GUID: What Are They & How to Generate Them Free

Understand the difference between UUIDs and GUIDs, learn about UUID versions, and generate cryptographically secure UUIDs for free directly in your browser.

Mar 10, 2026·5 min read

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18Developer

How to Minify HTML & CSS for Faster Websites (Free Tools)

Learn how HTML and CSS minification reduces file size, improves Core Web Vitals, and speeds up page loads. Step-by-step guide with free online tools.

Mar 10, 2026·7 min read

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19Tutorials

Free Barcode Generator & Scanner: Complete Guide for 2026

Learn how to generate and scan barcodes online for free. Covers Code 128, EAN-13, QR codes, and more — with real-world use cases for retail, logistics, and business.

Mar 10, 2026·7 min read

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20Writing

Free Online Grammar Checker: Fix Writing Errors Instantly

Discover how a free online grammar checker can improve your writing. Learn what errors are detected, how to use the tool, and writing tips for 2026.

Mar 10, 2026·6 min read

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21Writing

Text Case Converter: UPPERCASE, lowercase, Title Case & More

Learn to convert text between upper, lower, title, sentence, and camelCase instantly for free. Practical guide with use cases for developers and content creators.

Mar 10, 2026·4 min read

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22Security

MD5 & SHA Hash Generator: How Hashing Works (Free Tool)

Learn the difference between MD5, SHA-1, SHA-256, and SHA-512 hashes. Understand when to use each and generate hashes instantly for free in your browser.

Mar 10, 2026·7 min read

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23Developer

YAML to JSON Converter: A Complete Developer's Guide

Understand the YAML format and learn how to convert YAML to JSON and back for free. Covers Docker, Kubernetes, GitHub Actions, and API configuration use cases.

Mar 10, 2026·6 min read

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24Developer

How to Minify JavaScript for Faster Page Loads (Free Tool)

A practical guide to minifying JavaScript online for free. Learn how JS minification works, how much it reduces bundle size, and how to do it without breaking your code.

Mar 12, 2026·6 min read

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25Career

Top Resume Keywords That Beat ATS Systems in 2026

Discover the most powerful resume keywords that pass ATS screening in 2026. Category-by-category keyword lists plus tips on placement, density, and format.

Mar 12, 2026·9 min read

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26Developer

Free Web Performance Optimization Tools Every Developer Needs

Speed up your website using free browser-based tools. From image compression and code minification to Core Web Vitals testing — a complete performance toolkit for developers.

Mar 12, 2026·8 min read

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27Developer

What Is JSON? A Beginner's Complete Guide With Examples

A plain-English introduction to JSON for beginners. Learn JSON syntax, data types, nested structures, and how to format and validate JSON using free online tools.

Mar 12, 2026·8 min read

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28Security

Password Security Best Practices for 2026: Stay Safe Online

A complete guide to password security in 2026. Learn how to create strong passwords, understand common attack methods, and use free tools to check password strength.

Mar 12, 2026·8 min read

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29Video

How to Record Your Screen Online Free (No Installs, No Watermarks)

Record your screen directly in the browser — no software, no watermarks, no uploads. Learn how getDisplayMedia recording works, how to mix in your mic, and when to capture a tab, window, or full screen.

Jun 2, 2026·7 min read

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30PDF

How to Merge PDF Files Online Without Uploading Them

Most online PDF mergers send your documents to a server. Learn why that's a privacy problem and how client-side merging with pdf-lib combines your PDFs without a single byte leaving your device.

Jun 5, 2026·6 min read

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31Video

How to Compress Video in Your Browser for Free

Shrink large video files without installing an editor. Learn how resolution scaling and bitrate control work, why browsers export WebM, and how to compress video privately in your browser.

Jun 9, 2026·7 min read

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