Browse all apps

Convert tables between CSV, Markdown, SQL, and HTML formats instantly. Paste data in any format, edit it in a spreadsheet-like form, and export to the format you need.

by guntrip

Explore all 118 elements with a beautiful glassmorphism periodic table. Search, filter, and learn about each element.

by independent-coder

Interactive animated periodic table of elements. Click any element for detailed information including atomic weight, electron configuration, and more.

by Naveen Kumawat

A stunning cyberpunk-style interactive periodic table with 3D electron orbital visualizations and element heatmaps.

by SeanWong17

Interactive periodic table of 118 elements. Color-coded by category, filterable by phase and type. Click any element for detailed properties: atomic mass, density, melting/boiling points, electron configuration, and more.

by Launch Arcade

Convert Excel spreadsheets to Markdown right in your browser. Drop an .xlsx file and get clean tables, text, and images as Markdown — all processed locally, nothing uploaded.

by igapyon

A collaborative platform where developers worldwide can showcase and discover diverse coding projects across web development, mobile apps, machine learning and more.

by MrAshwin2142

Personal budget dashboard with interactive charts, income and expense tracking, and real-time balance calculations.

by Fahed1401

Calculate pace, finish time, or distance for running and cycling. Includes mile/km splits table, preset race distances, and imperial/metric support.

by Launch Arcade

JavaScript API client library for Passky password management services. Provides developers with tools to integrate password management functionality into web applications.

by Rabbit-Company

A score tracking leaderboard. Add players, submit scores, and see rankings update in real time. Great for game nights.

by Muhammad0602

A daily roguelike adventure you can play right in your browser. Explore procedurally generated dungeons, fight monsters, and collect loot.

by kesiev

Interactive visualizations of 40+ data structures and algorithms — trees, heaps, graphs, hash tables, sorting, and more. A classic CS education resource.

by dgalles

How many runs until you get the drop? Enter any drop rate and see exactly how many attempts you need for 50%, 90%, or 99% confidence.

by Launch Arcade

Calculate how your savings grow over time with compound interest.

by Kraftbit

Test your knowledge of JavaScript's tricky == operator. Fill in the equality table by guessing which comparisons return true — a fun challenge for developers.

by slikts

A lightweight web spreadsheet with formulas, cell formatting, merge, freeze panes, and multiple sheets. Excel-like editing in the browser.

by myliang

Track time spent on tasks with a simple start/stop interface and local storage.

by dmajda

A page displaying every standard HTML5 element. Great for testing CSS themes, browser rendering, and learning HTML5 tags.

by cbracco

Count characters, words, and bytes in your text instantly. Supports Korean character counting rules used in the NEIS education system.

by hjh010501