Tools, apps and games that run straight in the browser. No sign-in, no upload, no newsletter. Type what you need below.
Encode and decode Base64, URL, HTML entities, binary, ROT ciphers, and Punycode
Convert files to Data URL format for embedding in HTML/CSS/JS
Chat with any AI provider or custom endpoint. Bring your own key, auto-discover models, attach images to vision models — config in localStorage, chats cached locally.
Play chess against an AI opponent with three difficulty levels. Full rules including castling, en passant, and promotion.
Encode and decode text using RFC 4648 Base32 with padding
Encode text to binary, hex, decimal, or Base64 and decode it back with custom separators
View, inspect, and compare 3D models with multi-model support. Supports GLB, GLTF, OBJ, STL, FBX.
Command your defenses against waves of enemies. Place towers, upgrade with branching paths, and survive the boss.
Generate MD5, SHA-1, SHA-256 hashes
… 405 moresee all →
Hash-generator, password-generator, color-converter, percentage-calculator, container-query, contrast-checker, qr-code-generator persist config; maze-runner fog, simon strict, color-palette harmony/size/format, calculator angle, drawing-canvas bgColor now persist.
CSS Animation and Background Pattern generators persist config; Base Number Playground and Color Palette Generator persist input/harmony/export mode.
35+ CSS/text tools, 20+ games, and 15+ apps now restore your last input, mode, board size, difficulty, colors, and selections on reload via useLocalStorage. Notable: 3D-transform, filter, glitch-text, gradient-border, backdrop-filter, neumorphism, shadow-layers, glassmorphism, neon-button, accent-color, color-blindness-sim, border/border-radius/button/card generators.
Todo-list, calculator, sticky-notes, scratchpad, pomodoro-pro, tally-counter, time-zone-dashboard, mood-tracker, and more gained inline text search over their primary lists with empty-match messaging.
Board size, difficulty, level progress, best combo, best time, ship placement, and game-mode now persist across 25+ games including gomoku, nonogram, mahjong, maze-runner, lights-out, game-of-life, wordle, typing-test, tic-tac-toe-ultimate, tower-of-hanoi, checkers, chess.
CSS Accent Color, Color Blindness Simulator persist input; Game of Life speed and Mahjong best time persist; pomodoro-pro gained task search.