Blog
Developer tips, tutorials, and in-depth guides for the tools you use every day.
How to Create Charts from CSV Data Without Writing Code
Turn CSV files into bar charts, line graphs, pie charts, and scatter plots instantly in your browser. No software to install, no code to write.
How to Compare Text Online with a Diff Checker
Compare two blocks of text side by side with highlighted differences. Learn how diff checkers work, common use cases, and tips for effective text comparison.
How to Build an Instant Dashboard from Any CSV File
Drop a CSV file and get an auto-generated dashboard with summary statistics, charts, and correlations. No code, no setup, runs entirely in your browser.
How to View and Edit CSV Files Online Without Excel
Open, sort, filter, and edit CSV files directly in your browser. No software to install, no uploads to servers, and no file size limits from spreadsheet applications.
How to Convert CSV to JSON (and JSON to CSV)
A practical guide to converting between CSV and JSON formats. Covers browser-based tools, JavaScript and Python code examples, output format options, and common pitfalls.
How to Run SQL Queries on CSV Files in Your Browser
Query CSV data with SQL directly in your browser using WebAssembly-powered SQLite. Filter, aggregate, join, and export results without installing anything.
Color Theory for Developers: HEX, RGB, and HSL Explained
A practical guide to color models for developers. Learn how HEX, RGB, and HSL work, when to use each format, and how to manipulate colors programmatically in CSS.
HEIC to JPG: How to Convert iPhone Photos for Free
Learn how to convert HEIC photos from your iPhone to JPG format for free. Covers browser-based conversion, batch processing, and how to change your iPhone camera settings.
JPEG vs PNG vs WebP: Which Image Format Should You Use?
A practical comparison of JPEG, PNG, and WebP image formats. Learn when to use each format based on file size, quality, transparency, and browser support.
CSS Minification: Why It Matters and How to Do It Right
Learn what CSS minification removes, how it improves page load times, and how to minify your stylesheets correctly. Includes before-and-after code examples and best practices.
Word Count, Readability Scores, and Why They Matter for Content
Learn how word count targets, Flesch-Kincaid readability scores, and keyword density work together to improve content performance across blogs, social media, and SEO.
How to Merge PDF Files Online for Free
Learn how to combine multiple PDF files into one document online for free. Step-by-step guide to merging PDFs with client-side privacy, plus tips for organizing and compressing your files.
QR Code Generator: Complete Guide to Creating Custom QR Codes
Learn how to create custom QR codes for URLs, WiFi networks, vCards, email, and phone numbers. Covers error correction levels, color customization, and best practices for print and digital use.
How to Compress Images for the Web Without Losing Quality
Learn how to reduce image file sizes for faster websites using lossy and lossless compression. Covers JPEG, PNG, WebP comparison, quality settings, batch workflows, and Core Web Vitals impact.
WCAG Color Contrast: A Developer's Guide to Accessible Design
Learn how WCAG contrast ratios work, the difference between AA and AAA compliance, how to calculate contrast, and how to fix low-contrast color combinations in your designs.
Base64 Encoding Explained: When and Why to Use It
Understand what Base64 encoding is, how it works under the hood, and when to use it in web development. Includes practical examples for images, APIs, and data URIs.
How to Format and Validate JSON Online
Learn how to format, beautify, and validate JSON data online for free. Understand common JSON errors and best practices for working with JSON in web development.
JSON Cheat Sheet: Syntax, Data Types, and Common Errors
The ultimate JSON reference. Quick guide to JSON syntax, data types, nested structures, arrays, and how to fix common JSON errors.
The Ultimate Regex Cheat Sheet for Developers
A comprehensive regex cheat sheet covering character classes, quantifiers, anchors, groups, lookahead, lookbehind, and common patterns with examples.
Regex Tutorial for Beginners: Patterns, Flags, and Examples
Learn regular expressions from scratch. This beginner-friendly guide covers regex patterns, flags, character classes, quantifiers, and practical examples.