tapmetronome.appview page →

Tap Metronome is a free online metronome with tap tempo, built for musicians, students and teachers. Tap a button or the space bar along with any song to detect its BPM in real time, then practise at a steady click anywhere from 30 to 240 BPM. Choose 2/4, 3/4, 4/4 or 6/8 time, quarter, eighth, triplet, sixteenth or quintuplet subdivisions, and accent patterns, with click or woodblock sounds, volume control and visual beat indicators.

rulermeasurements.comview page →

Online Ruler is a free set of measuring tools that run entirely in your browser. Its actual-size screen ruler shows centimeter, millimeter and inch scales, and a calibration step fixes the usual problem of on-screen rulers being wrong on phones and high-DPI displays: match the outline to an ISO/IEC 7810 ID-1 bank card (85.60 x 53.98 mm) or enter your screen diagonal.

rainbowcoloringpage.comview page →

Rainbow Coloring Page is a free library of printable coloring pages for kids, parents and teachers. Browse themes such as animals, holidays and seasons, nature and flowers, educational pages and vehicles, then print in one click, download PNG or PDF, or color online, with no account required. When a standard page isn't quite right, AI tools let you create personalized pages: name posters, worksheets, photo-to-sketch and custom themed pages.

compare-text.orgview page →

TextCompare is a free online diff checker that finds the differences between two texts, files or code snippets. Paste or drop two versions and it highlights added, removed and changed lines, with line, word and character-level modes and side-by-side or inline views. Options let you ignore case, whitespace or line endings, sort lines and drop empty lines. You can merge changes git-style and export the diff as PDF, spreadsheet or PNG.

mazegenerator.onlineview page →

Maze Generator is a free online maze maker for kids, teachers and puzzle fans. Create a solvable maze in seconds and download a printable PDF with the answer key on the next page. Choose square, circular, hexagonal or triangular grids, rectangle, letter, number or animal and holiday shapes, and eight difficulty levels with suggested ages.

keyboardanalyzer.comview page →

KeyboardAnalyzer is a free online keyboard tester that runs entirely in your browser, with no download or sign-up. Press any key to see its live status and key codes on Windows, Mac and laptop layouts. Beyond basic key checks it includes ghosting and NKRO (anti-ghosting) tests, input latency and polling-rate tests, key chatter detection, a spacebar test and a typing speed (WPM) test.