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AiTechWorlds
AiTechWorlds
Productivity tools remove the small frictions that interrupt a developer’s flow — building cron expressions, converting Unix timestamps, comparing timezones for meetings, doing date arithmetic, counting words, and running a focus timer. Each tool gives an instant answer in the browser, with no account and nothing to install.
These utilities replace the repetitive lookups and calculations that pull you out of deep work. Build and explain a cron schedule with the next run times, convert epoch seconds or milliseconds to human dates and back, plan a meeting across multiple timezones with DST awareness, add or subtract days and compute ages, analyze text readability, and track Pomodoro focus sessions and streaks saved locally in your browser — no sign-in required.
Calculate semester GPA and cumulative CGPA for 50+ world university grading systems — credit-weighted, with scale conversion.
Build cron expressions visually or by typing — with human-readable description and next 5 run times.
Calculate date differences, add/subtract days, and compute ages with working-day support.
Compare times across multiple timezones with live refresh and meeting planner mode.
Score your text with 7 readability formulas — Flesch, Fog, SMOG, ARI, and Coleman–Liau — in one pass.
Convert Unix timestamps (seconds or ms) to human dates and vice versa — all formats at once.
Count words, characters, sentences, paragraphs — plus reading and speaking time estimates.
Focus timer with short/long breaks, session tracking, and daily streak — saved in localStorage.
Convert length, weight, data, speed, area, volume, and time units with instant two-way conversion.
Measure your typing speed (WPM) and accuracy in real time with live character highlighting and passages.
Count characters, words, sentences, and lines with live limits for Twitter/X, meta descriptions, and SMS.
Track daily habit completion across a 7-day grid with a weekly completion rate.
Plan top priorities and hour-by-hour time blocks for your day.
Plan tasks across all 7 days of the week with a main weekly goal.
Plan a full month in a calendar grid with per-day notes and a monthly goal.
Track progress toward measurable goals with a target date and progress bar.
Structured meeting notes with agenda, freeform notes and trackable action items.
Build any custom checklist with progress tracking and Markdown export.
Generate a downloadable .ics calendar file or Google Calendar add-event link for any event.
Turn a 5-field cron expression into a plain-English schedule description, field by field.
Sort tasks into Do/Schedule/Delegate/Delete quadrants by urgency and importance.
Start/stop a timer to log focus sessions with labels and see total focus time by day.
Score multiple options against weighted criteria to get an objective, ranked decision.
Calculate BMI and daily calorie needs (BMR/TDEE) based on height, weight, age and activity level.
No. The Pomodoro Timer tracks your focus sessions, breaks, and daily streak using your browser’s localStorage. No account, login, or server is involved.
Yes. The Cron Builder produces a human-readable description of any cron expression and shows the next five run times so you can confirm the schedule is correct.
Yes. It converts Unix timestamps in both seconds and milliseconds to human-readable dates and back, showing several common formats at once.
Yes. It compares times across multiple IANA timezones with daylight-saving adjustments and a meeting-planner mode for scheduling distributed teams.