Day Left
Time & LifeMinimal countdown showing how much time is left in the day. Custom targets, calendar picker, localStorage.
46 tools · 7 categories · 0 sign-ups
Tiny tools that just work
A growing collection of single-file, zero-dependency web tools — timers, dev utilities, visual toys, and DevOps helpers. Free, open source, no sign-up. Everything runs in your browser.
Recently added
- EMI Calculator— 29 Aug 2026
- Handwriting Font Maker— 8 Aug 2026
- RSS → Substack— 30 Jul 2026
- Fasting Tracker— 25 Jul 2026
- YAML Validator— 10 Jun 2026
- Webhook Inspector— 3 Jun 2026
- Uptime Radar— 3 Jun 2026
- Cron Log Viewer— 3 Jun 2026
Recently updated
- Day Left— 2 Sept 2026
- Year Progress— 2 Sept 2026
- Week Progress— 2 Sept 2026
- Pomodoro Timer— 2 Sept 2026
- Breathe— 2 Sept 2026
- Age in Seconds— 2 Sept 2026
- Deadline Counter— 2 Sept 2026
- Life Calendar— 2 Sept 2026
Showing all 46 tools
Year Progress
Time & LifeLive year progress bar with circular ring, day-of-year counter, and free days remaining.
Week Progress
Time & LifeLive work week progress bar — shows day, week number, hours remaining. Toggle 5-day / 7-day.
Pomodoro Timer
Time & LifeFocus timer with 25/5/15 min cycles, visual ring, audio beep, keyboard shortcuts.
Breathe
Time & LifeGuided breathing exercise with expanding circle. 4-7-8, box breathing, and energizing modes.
Age in Seconds
Time & LifeReal-time seconds counter from your birth date, plus heartbeats and breaths taken since birth.
Deadline Counter
Time & LifeFlip-card countdown to any target date/time. Multiple deadlines with localStorage persistence.
Life Calendar
Time & Life90-year week grid — each box is one week of your life. Existential but motivating.
Fasting Tracker
Time & LifeOffline-first fasting and weight tracker with timers, streaks, water and body metrics, plus a 30-day weight projection.
JSON Pretty
Developer ToolsPaste JSON, get formatted, minified, or tree-view output. Drag-and-drop support.
Color Palette
Developer ToolsEnter a hex colour, get complementary, analogous, triadic, and monochromatic palettes.
Base64 Encoder / Decoder
Developer ToolsEncode/decode text and files to/from Base64. Drag-and-drop file support.
Markdown Live Preview
Developer ToolsSplit-view markdown editor with live rendered HTML. Custom 75-line parser.
Diff Checker
Developer ToolsSide-by-side text comparison with LCS diff — green/red line highlighting.
Passphrase Generator
Developer ToolsDiceware-style passphrase generator with 2,300+ words and entropy indicator.
Unit Converter
Developer ToolsConvert temperature, length, weight, area, and volume — 35+ units, live updates.
Text Counter
Developer ToolsReal-time character, word, sentence, reading/speaking time counter with Twitter/SMS bars.
YAML Validator
Developer ToolsYAML syntax, style, and schema validation with optional JSON Schema support.
Conway's Game of Life
Fun & VisualCellular automaton on canvas. Click to toggle cells, 5 preset patterns, start/stop/reset.
Pixel Art Editor
Fun & Visual32×32 grid canvas with 16 colours. Click to paint, export as PNG.
Analog Clock
Fun & VisualCanvas clock with second hand. 3 visual themes (classic, dark, neon). Odia numerals option.
Orbital Sim
Fun & Visual2-body/3-body gravity simulation. Click to add mass, watch Newton's laws in action.
Odia Numerals Clock
Fun & VisualLive clock in Odia numerals (୦ ୧ ୨ ୩ ୪ ୫ ୬ ୭ ୮ ୯) with Odia day names.
Mandelbrot Explorer
Fun & VisualZoomable Mandelbrot set fractal — click to zoom, drag to pan, scroll iterations.
Typing Test
Fun & VisualType quotes, track real-time WPM and accuracy. Character-level highlighting.
Matching Game
Fun & Visual4×4 memory card flip game with emoji pairs, star rating, and local high scores.
Noise Canvas
Fun & VisualHypnotic Perlin noise visualisation with frequency, octaves, speed controls. Screensaver mode.
Snowfall
Fun & VisualFalling snow particle system with wind control and seasonal colour modes.
Odia 2048
Fun & VisualThe 2048 sliding-tile game played entirely in Odia numerals (୦–୯). Touch and keyboard, dark/light mode.
Handwriting Font Maker
Fun & VisualPrint a template, write, snap a photo — get a TTF font of your own handwriting. Runs entirely in the browser.
API Playground
DevOps & MonitoringHTTP API testing tool with custom headers, methods, and response inspection.
Config Diff
DevOps & MonitoringCompare configuration files side-by-side with diff highlighting.
Webhook Inspector
DevOps & MonitoringCapture, inspect, and replay webhook payloads.
Uptime Radar
DevOps & MonitoringEndpoint availability and latency monitor with real-time status.
Cron Log Viewer
DevOps & MonitoringBrowse, filter, and inspect cron job execution logs.
Cost Tracker
DevOps & MonitoringLLM API cost tracker across OpenRouter, Anthropic, and OpenAI.
Coolify Dashboard
DevOps & MonitoringSingle-file HTML dashboard for Coolify: deployment status, container health, resource usage.
Env Var Manager
DevOps & MonitoringAES-GCM encrypted environment variable manager with 3 envs and diff viewer.
EMI Calculator
FinanceSolves for EMI, loan amount, tenure or rate — compare any number of offers side by side, prepay to finish early or cut the EMI, prepay-vs-invest, Section 24/80C tax relief, moratorium, floating and flat rates, APR, foreclosure and a full amortization schedule.
Portfolio Tracker
FinanceTrack stock portfolio, dividends, and financial goals.
SIP Calculator
FinanceSIP and investment calculator with wealth projections and comparisons.
Call Log Explorer
TelephonyPlivo CDR analysis and visualization with drag-drop support.
IVR Flow Builder
TelephonyVisual drag-and-drop phone tree designer with Plivo XML/JSON export.
Writing Scheduler
Writing & ContentLightweight editorial calendar with drag-and-drop scheduling and GitHub commit linking.
Citation Manager
Writing & ContentPaste a URL, auto-fetch metadata, generate citations in 5 formats.
RSS → Substack
Writing & ContentLoad any RSS or Atom feed, pick a post, and copy it as Substack-ready rich text — formatting, links, and images preserved.