You don't need expensive software to build websites. Free online tools can handle most developer tasks – from code formatting to API testing to image optimization[reference:14].
Here are 10 free online tools every web developer should bookmark.
1. JSON Hero – JSON Viewer
URL: https://www.baike300.com/article/130.html
JSON Hero displays JSON data in a clean, interactive interface with collapsible sections, tree view, and search. Much easier to read than raw text[reference:15].
2. Regex101 – Regex Tester
URL: https://regex101.com
Write and test regular expressions with real‑time matching, explanation, and performance analysis. Free and no registration required[reference:16].
3. Carbon – Code to Image
Turn your code snippets into beautiful images for sharing on social media, presentations, or documentation[reference:17].
4. Can I Use – Browser Support Checker
URL: https://caniuse.com
Check browser support for CSS, HTML, and JavaScript features before using them in production[reference:18].
5. VS Code (Free Desktop) – Code Editor
URL: https://code.visualstudio.com
Free, open‑source code editor with built‑in Git, debugging, and thousands of extensions. Works for any language or framework[reference:19].
6. n8n – Workflow Automation
URL: https://n8n.io
Open‑source automation tool that connects APIs and services without code. Self‑host or use their free cloud tier[reference:20].
7. PowerToys (Windows) – Developer Utilities
URL: Microsoft PowerToys
Includes FancyZones for advanced window layouts, PowerToys Run as a faster app launcher, and Colour Picker for frontend work[reference:21].
8. NeedleCode Utilities – Webmaster Toolbox
A unified collection of zero‑bloat utilities for webmasters and frontend developers[reference:22].
9. NotebookLM – AI Research Assistant
URL: https://notebooklm.google
AI‑powered notebook that helps you organize research, summarize documents, and generate insights from your uploaded files[reference:23].
10. Free SaaS Directory – Startup Tools
URL: Free SaaS Directory
A comprehensive list of free SaaS services for startups and individuals, categorized by function[reference:24].
More resources: Check our technical tutorials or VPS reviews.