Media Tools
(21)Private audio and video utilities — convert, trim, record and transcribe media entirely on your device using on-device processing. Your recordings never leave your browser.
Subtitle Editor (SRT/VTT) Edit, retime and convert SRT and WebVTT subtitles Voice Recorder Record microphone audio and download it White Noise & Rain Generate white, pink or brown noise & rain to focus or sleep Ambient & Binaural Generator Generate binaural & isochronic tones with a noise bed Meditation Session Generator Layered binaural meditation sessions — play or export WAV/MP3 Music Player Play your own MP3/WAV/FLAC files with a playlist & album art Video Player Play local MP4/WebM with subtitles, frame capture & PiP Metronome A precise metronome with tap tempo & time signatures Instrument Tuner Tune guitar, ukulele or voice with pitch & cents readout Video → GIF Turn a video clip into an animated GIF (client-side) Voice to Text Transcribe speech to text on-device (Whisper), with SRT/VTT export Text to Speech Read text aloud with your browser’s built-in voices Live Captions Large live captions of spoken speech (uses browser speech recognition) Teleprompter Read a script on-screen with auto-scroll, voice-tracking, mirror mode and a camera preview Video Converter Convert, compress, trim or resize video (client-side) Video Compressor Compress a video to a target file size (client-side) Audio & Video Trimmer Trim or cut a section from audio or video (client-side) Video → Audio Extract the audio track from a video (client-side) Audio Converter Convert, re-encode or trim audio files (client-side) Screen Recorder Record your screen, window or tab (client-side) Screenshot Capture your screen with a countdown, then crop (client-side)
Frequently asked questions
Are my recordings uploaded to a server?
No. Every Media tool on PDFPowerHub runs in your browser — converting, trimming, recording and transcribing all happen on your device, so your recordings never leave it.
Do I need to install anything or create an account?
No install and no sign-up. Open the page and use any tool instantly — no limits and no watermarks.
Do these Media tools work offline?
Yes. PDFPowerHub is a PWA, so once loaded the tools keep working with no internet connection.
Are these Media tools free?
Yes — every tool in the Media category is completely free, with no limits or watermarks.