AAAtoBBB - Universal Conversion

Has been committed to providing Internet users with convenient and fast online conversion services.

Brief strokesConvert color image to black and white stick figure image

Online alarm clockFree online alarm clock

Audio conversionOnline audio converter for MP3, WAV, OGG, FLAC, M4A, AAC, OPUS and more. Files are converted locally in your browser without uploading to a server.

Audio CutterOnline Audio Cutter for audio trimming, volume control, fade-in and fade-out timing, and audio format conversion. It supports MP3, WAV, OGG, FLAC, M4A, AAC, OPUS and more, with all processing done locally in the browser.

Color Picker onlineThe online color picker supports extracting colors and uploading images from any position on the screen.

CounterFree online counter with click to increase, decrease, reset, custom step size, manual value setting, spacebar counting, sound feedback, and saved count history.

File hash calculationFile Hash Value Calculator

Keyboard TestKeyboard Test Online

Online ScoreboardOnline scoreboard, used to record the score of matches.

Screen TestFree online screen test tool for dead pixels, backlight bleed, grayscale, color ramps, contrast, grid sharpness, motion response, resolution and display information.

Online Screen RecorderThe fast and easy way to capture high-quality videos with no watermark for free. Record screen, webcam, and voice, and instantly save to your computer.

Shelf Life Calculator'Quickly calculate the expiration date, last recommended use date, and remaining days from a production date and shelf life.

Sudoku solverSudoku answer acquisition tool

touchscreenFree online touch screen test tool for multitouch, touch trails, grid coverage, touch response, pressure and contact radius information.