Free browser tools

Drop in a clip and an on-device speech model transcribes it — nothing is uploaded. Fix any wording in the editor, restyle the captions, then export clean SRT/VTT or a video with the subtitles burned in.

Turn an interview, lecture or voice note into a clean text transcript that runs entirely in your browser. Copy the result or download a .txt to drop into your notes or script.

Move subtitles between SRT, VTT and plain text, nudge every cue to fix an offset, and rescale timing when the frame rate changes — all locally, in seconds.

A fast in-browser toolkit for the everyday jobs: trim the dead ends, pull the audio out as MP3, turn a moment into a GIF or grab a still frame. Powered by ffmpeg.wasm, so your files never leave the device.

A rock-steady WebAudio metronome with tap tempo, adjustable time signature and an accented downbeat — sample-accurate timing for practice and tracking.

Point your mic at any instrument or sing a note and get a live pitch and cents readout, with a clear in-tune indicator. Great for guitar, strings, brass and voice.

Sing your lowest and highest comfortable notes and the tool maps your range, names the notes and suggests your voice type — a quick way to pick keys that fit you.

Sharpen your relative pitch with interval drills, instant right/wrong feedback and a streak counter that keeps you honest. A few minutes a day adds up fast.

Produce a pure tone at any frequency with selectable waveform and a sweep mode — handy for testing speakers, checking a room or training your ear to a reference pitch.

A full-screen teleprompter that scrolls on its own, follows your voice, or mirrors for a beam-splitter rig — and can record your webcam at the same time so you read straight down the lens.

Paste a script and get an honest estimate of how long it takes to say out loud at your chosen pace, plus a word and character count — so your video lands on time.