Camera, Mic & Media
48 toolsFree, browser-based camera, microphone, and speaker tools - QR/barcode scanners, webcam and screen recorders, mic test, decibel meter, spectrum analyzer, and more. Everything runs on your device and is never uploaded.
Your camera, microphone, and speakers can do more than video calls. Test them, record with them, and measure with them: everything from a quick webcam check to a decibel meter, spectrum analyzer, and document scanner.
Browser permission prompts guard every tool, and audio or video is processed on-device. Nothing is streamed anywhere, which is the whole point of testing a mic on a page you can trust.
Most popular
Camera & Webcam
- Webcam Test Test your webcam quickly and privately. See a live preview, check resolution, frame rate, and switch between connected cameras. Nothing is recorded or uploaded.
- Webcam Mirror Use your webcam as a live mirror in your browser. Flip horizontally, adjust zoom, and go full-screen. No video is recorded or uploaded.
- Webcam Recorder Record video from your webcam directly in the browser using MediaRecorder. Preview the recording and download as WebM. No uploads, no account needed.
- Photo Booth Take photos with your webcam and apply fun filters and effects: grayscale, sepia, invert, warm, cool, and more. Download your photos instantly. Nothing is uploaded.
- Document Scanner Use your camera to scan documents and save them as PDFs in the browser. Capture multiple pages and download the combined PDF. Nothing is uploaded.
- Camera Color Picker Point your camera at any surface and click to pick the color. Get the HEX, RGB, and HSL values instantly. All processing is done locally in your browser.
- Camera Heart Rate Estimate your pulse by placing your fingertip over the camera lens. Uses photoplethysmography (PPG) color change analysis. For informational use only - not a medical device.
- Motion Detector Detect motion in real time using your webcam. Visualizes movement regions and triggers an alert. All video processing is local - nothing is recorded or uploaded.
- Face Landmark Detector Detect faces in your webcam feed in real time using the browser's built-in Face Detection API. Draws bounding boxes locally - no images are uploaded.
- Virtual Background Blur your webcam background in real time without any app installation. Adjust blur strength and portrait area. All processing happens locally in your browser.
- Chroma Key Tool Remove your webcam background using chroma key (green screen) technology. Choose a key color, adjust the threshold, and replace the background with any color or image - all in your browser.
- ASCII Art Camera Turn your webcam feed into real-time ASCII art. Adjust the character density, invert colors, and copy or download the ASCII output. Runs entirely in your browser.
- Stop-Motion Studio Create stop-motion animations using your webcam. Capture frames one by one, preview the playback, and manage your frame sequence. Runs entirely in your browser.
- Time-Lapse Recorder Record time-lapse footage directly in your browser using your webcam. Set the capture interval, watch the frame count grow, and download the captured frames.
- Light Meter Estimate the lighting level in your scene using your webcam. Displays average luminance, approximate EV (exposure value), and a recommended exposure setting. Runs in your browser.
- PD Measurer Estimate your pupillary distance (PD) using your webcam and a credit card as a scale reference. Click on your pupils and card edges to measure. For informational use - not a prescription tool.
- Posture Reminder Use your webcam to monitor your posture and get reminders when you slouch. The tool takes a baseline photo of your upright posture and alerts you when frame differences indicate significant movement.
Screen & Scanning
- QR Code Scanner Scan QR codes using your camera or decode from an uploaded image. Detects URLs, Wi-Fi, vCards, and more. 100% client-side, nothing uploaded.
- Barcode Scanner Scan EAN-13, UPC-A, Code 128, Code 39, and other barcodes with your camera or from an uploaded image. All processing happens locally in your browser.
- Screen Recorder Record your entire screen, a window, or a browser tab directly in the browser. Download as WebM. No installs, no uploads, everything stays on your device.
- Teleprompter A free browser-based teleprompter. Paste your script, adjust speed, font size, and margins, then scroll hands-free. Pairs perfectly with your webcam for recording.
- Screen Eyedropper Pick any color from anywhere on your screen using the browser EyeDropper API. Get instant HEX, RGB, and HSL values. No extensions required.
Microphone & Voice
- Microphone Test Test your microphone in the browser. See a live volume meter, waveform, and confirm audio input is working. No audio is recorded or uploaded.
- Voice Recorder Record audio from your microphone in the browser and download the recording as a WAV file. No account, no upload, nothing stored on a server.
- Speech to Text Dictate text using your microphone. Uses the browser Web Speech API for real-time speech recognition. Copy or download your transcription. Nothing is sent to a server.
- Voice Changer Record your voice and play it back at a different pitch - chipmunk, deep monster, or anything in between. No upload needed, runs entirely in your browser.
- Vocal Range Finder Discover your singing vocal range using your microphone. Sing your lowest and highest notes - the tool detects the pitch and displays your note range and voice classification.
- Decibel Meter Measure the sound level around you with your microphone. See real-time dBFS readings, peak level, and average. All audio processing is local - nothing is recorded or uploaded.
- Spectrum Analyzer Visualize the frequency spectrum of your microphone in real time using a live bar chart (FFT). Useful for audio analysis, room acoustics, and sound experiments.
- Audio Oscilloscope Visualize sound waveforms from your microphone as an oscilloscope trace in real time. See the amplitude vs. time graph live in your browser.
- BPM Detector Detect the tempo (BPM) of music or rhythm in real time using your microphone. Uses onset energy detection to estimate beats per minute. No upload required - runs entirely in your browser.
- DTMF Tone Generator Generate DTMF dual-tone multi-frequency signals for any phone keypad symbol (0-9, *, #, A-D). Click keys to dial and hear the tones in your browser.
Hearing & Sound
- Speaker Test Test your speakers or headphones by playing tones through the left, right, or both channels. Check stereo separation and frequency response.
- Hearing Test Test your hearing range by playing tones from 20 Hz to 20 000 Hz. Find the highest and lowest frequencies you can hear. For informational use only - not a medical device.
- Noise Generator Generate white, pink, or brown noise for sleep, focus, or tinnitus relief. Adjust volume and choose noise color. Pure browser audio - no downloads needed.
- Binaural Beats Generate binaural beats for focus, relaxation, meditation, or sleep. Choose your carrier frequency and beat frequency. Use with headphones for best results.
- Isochronic Tones Generate isochronic tones for focus, relaxation, or sleep. Unlike binaural beats, isochronic tones work without headphones. Choose a brainwave preset or customize the carrier and pulse frequencies.
- Tinnitus Masker Generate a customized masking noise with a notch filter centred on your tinnitus frequency. For informational and relaxation use only - not a medical treatment. Consult an audiologist for clinical advice.
Music Corner
- Virtual Piano Play a virtual piano keyboard directly in your browser using your mouse or QWERTY keyboard. No plugins or downloads required. Great for learning notes.
- Beat Sequencer Create and play drum patterns in your browser with this 16-step beat sequencer. Kick, snare, hi-hat and more. Adjust BPM and apply presets.
- Chord Progressions Generate diatonic chord progressions in any key and scale mode. Preview common progressions like I-IV-V or ii-V-I with chord symbols and playback.
- Circle of Fifths Explore the circle of fifths interactively. Click any key to see its key signature, relative minor, and diatonic chords. Essential music theory reference.
- Guitar Chord Diagrams Look up guitar chord fingerings with SVG fretboard diagrams. Covers major, minor, and 7th chords. No download needed.
- Music Scale Reference Visualize any music scale on a guitar fretboard and piano keyboard. Supports major, minor, pentatonic, blues, modes and more for all 12 roots.
Photo Effects
- Photo Filters Apply vintage, sepia, grayscale, sketch, cartoon, and other photo filters to any image in your browser. No upload required - all processing is done locally.
- Pixel Sorter Create glitch art by sorting pixels in your image by brightness, hue, or color channel. Adjust threshold and direction for different visual effects. Runs entirely in your browser.
- Tilt-Shift Effect Create a tilt-shift miniature effect from any photo. Keep a horizontal band in focus and blur the rest to make real scenes look like tiny scale models. Runs locally in your browser.
- Steganography Tool Hide a secret text message inside any PNG image using LSB steganography, or reveal hidden messages from an image. All processing runs locally in your browser.
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