- Hitchhiker's Guide — Privacy and anonymity guide
- Privacy Guides — Privacy best practices
- Exodus — Android tracker audit
- YOPmail — Disposable email inbox
- Mail.tm — Temporary email addresses
- Emailnator — Temporary disposable Gmail
- Bitwarden — Open-source password manager
- Proton VPN — Secure VPN service
- Watermark KTP — Watermark ID generator
- Open Source Alternative To — Software alternatives
- AlternativeTo — Software alternatives
- KBBI — Indonesian dictionary
- arXiv — ePrint archive
- Connected Papers — Paper graph explorer
- Sci-Hub — Paper access (legal risk)
- Welib — Digital library (legal risk)
- Internet Archive — Wayback machine
- TinyWOW — Free web tools suite
- Convert Case — Text case converter
- Pngyu — PNG optimization utility
- Imgflip — Meme and GIF creator
- Excalidraw — Hand-drawn diagrams
- Mermaid Live — Mermaid diagrams editor
- draw.io — Online diagram software
- QuickRef — Quick references
- Learn X in Y Minutes — Quick references
- Tampermonkey — Customize web functionality
- JSON Formatter — Pretty-print JSON
- Lighthouse — Web audits toolkit
- VisBug — Visual CSS inspector
- Front-End Checklist — Web launch checklist
- CodePen — Front-end playground
- UIVerse — Open-source UI elements
- Can I Use — Browser feature support
- PocketBase — 1-file backend service
- Hoppscotch — API testing suite
- Public APIs — Curated public APIs
- Daftar API Lokal — Indonesian APIs list
- Icon Horse — Fetch site favicons
- Mockaroo — Random test data
- JSONPlaceholder — Fake REST API
- DiceBear — Avatar generator library
- Picsum Photos — Placeholder image generator
- Carbon — Code image generator
- Stack Overflow Insights — Annual dev survey
- OpenAPI — API specification
- Current Millis — Unix epoch milliseconds
- SemVer — Semantic versioning
- Free Stuff — Free dev resources
- free-for.dev — Free dev resources
- Markdown Guide — Markdown reference
- GPRM — GitHub profile builder
- Shields.io — Badges for README
- roadmap.sh — Developer roadmaps
- GoalKicker — Programming notes books
- Refactoring Guru — Patterns and refactoring
- OODesign — Design principles
- EbookFoundation — Free programming books
- College Compendium — CS course resources
- MIT OCW — Open courseware
- SQLPD — SQL practice problems
- Color Hunt — Curated color palettes
- uiGradients — Gradient collections
- Coolors — Palette generator
- Lospec Palette - Pixel art color palette
- Ramp Generator — Color ramp generator
- Colorkit Shades & Tints - Shades and tints
- Colour Contrast — WCAG contrast checker
- Wordmark — Preview installed fonts
- Google Fonts — Free web fonts
- Free Faces — Free typefaces gallery
- Cool Symbols — Symbols and emojis
- Unsplash — Free stock photos
- Iconify — Unified icon sets
- Simple Icons — Brand SVG icons
- Myinstants — Instant sound buttons
- Panzoid — Custom content tools
- EZGIF — GIF tools suite
-
Logo Book — Logo inspiration catalog
-
Watermarkly — Add image watermarks
-
Lipsum — Lorem ipsum text
-
Anthony Boyd Mockups — Free PSD mockups
- Phlanx — Engagement rate
- Social Blade — Tracks user statistics
- Jiffy Reader — Bionic reading overlay
- Your Life in Weeks — Your life in weeks
- Read Something Great — Timeless essays
- Goodreads Quotes — Popular quotes
- 48 Laws of Power Summary — Book summary
- The Personal MBA — Business basics
- 7 Habits — Productivity habits
- Wise Words Blog - notes and summaries
- Visual Book Summaries — Visual summaries
- PARA Method — Organize information
- BASB Overview — Organizing knowledge system
- MLU Explain — Visual explanations of ML
- Seeing Theory — Visual explanations of probability
- Python Tutor — Visualize code execution
- CSV Is Tool — DS & algorithms visualization
- Papers with Code — Papers with implementations
- Math Symbols — math symbols reference
- OpenGameArt — Free art assets
- Kenney — Free game assets
- OSINT Framework — Osint resources directory
- Wordwall — Classroom activities
- Slido — Live polls and Q&A
- Mentimeter — Interactive presentations
- LinkedIn Career Explorer — Skill-based jobs
- Indeed — Job search
- Google Jobs — Job search aggregator
- Fiverr — Freelance marketplace
- Upwork — Freelance marketplace
- Sribu — Indonesia freelance marketplace
- No Hello — Chat etiquette
- Don’t Ask To Ask — Ask better questions




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