Productivity

Protect focus, build habits, and keep useful work local to your browser.

19 tools in this category

  • Random Picker Wheel

    Spin an animated decision wheel with up to 16 options - giveaways, team picks, and dinner debates settled fairly.

  • Online Notepad

    Distraction-free scratchpad that autosaves to your browser every half second. Download notes as .txt anytime.

  • Voice Recorder

    Record audio from your microphone with a live timer, preview playback, and download - recordings never leave your browser.

  • Developer Pomodoro Timer

    25-minute focus sessions with break tracking, session history, and browser notifications.

  • CruxDev Flashcards

    Master IT, CS, and AI concepts with Leitner spaced-repetition flashcards stored locally.

  • Big-O Complexity Matrix

    Compare time and space complexity of sorting and searching algorithms side-by-side.

  • Professional Résumé Builder

    Build ATS-ready résumés with 9 templates, live preview, ATS score, and PDF export.

  • System Design Whiteboard

    Design architecture boards your way: editable nodes with custom types, per-node colors, glass or solid styles, drag positioning, and JSON export.

  • Client-side API Tester

    Send HTTP requests with custom headers and bodies. Inspect responses — no proxy needed.

  • CruxDev Nano AI Tutor

    Ask technical questions answered by Chrome's built-in AI or a deterministic fallback engine.

  • Distraction-free Markdown Editor

    Write Markdown in a minimal, quiet workspace. Auto-saves drafts to your browser.

  • Git Commands Reference

    Searchable cheatsheet for Git — every command with flags, examples, and workflow notes.

  • Text to Speech Reader

    Read any text aloud with your system voices — adjustable speed and pitch, processed entirely on-device.

  • World Clock

    Track current time across any timezones with work-hours highlighting — updates every second.

  • Meeting Time Planner

    Find the best hour for a call across two timezones — every hour rated great, workable, or unsociable.

  • Countdown Timer

    Full-screen countdown with presets, progress bar, and a completion chime — for focus blocks and breaks.

  • Online Stopwatch with Laps

    Precision stopwatch with lap timing, splits, and totals — centisecond accuracy via the performance clock.

  • Cron Expression Builder & Explainer

    Visual 5-field cron builder with human-readable English breakdown and instant schedule presets.

  • Camera & Screen Recorder

    Record your webcam, screen, or both as WebM/MP4 — configurable resolution, audio, and picture-in-picture. No uploads.