Video & Creators
A toolkit for video creators, streamers and podcasters — edit, convert and resync subtitles, generate valid YouTube chapters, design thumbnails, calculate bitrate and aspect ratios, run a teleprompter, and trim a clip to a seamless loop. Your media is processed in the browser and never uploaded.
19 Video & Creators tools
- Subtitle Editor, Converter & Resync — Edit, convert (SRT/VTT/SBV/ASS/LRC) and resync captions — offset & frame-rate fixes.
- YouTube Chapter & Timestamp Generator — Build a valid YouTube chapters block — checks the 0:00 / 3+ / 10s activation rules.
- Teleprompter — Scroll your script hands-free — adjustable speed, mirror mode & fullscreen.
- Video File Size & Bitrate Calculator — Calculate video file size from bitrate & duration, get the recommended bitrate, with platform presets.
- Resolution Scale & Aspect Ratio Calculator — Scale a resolution by percentage, compute dimensions for any ratio, reduce W×H to a ratio, crop to every platform.
- Video to GIF Maker — Turn a clip into an animated GIF — pick a range, fps, size & caption. Fully in-browser.
- Thumbnail Maker & Editor — Grab a video frame or image, add bold text & overlays, then preview it in YouTube — export 1280×720.
- Metronome & Instrument Tuner — A precise metronome plus an instrument tuner (guitar, bass, ukulele, violin, cello & more) with adjustable A4, reference tones, and exact note + cents — all on your device.
- Audio Spectrogram & Waveform — Open an audio file or use your mic to see a spectrogram & waveform — playback, log/linear scale, perceptual colour maps, exact Hz/note/dB readouts, PNG & CSV export. Nothing uploaded.
- Video Compressor — Shrink a video to a target size (25 MB for email or Discord) or a quality preset — scale to 720p, strip audio, export MP4 or WebM. Never uploaded.
- Video Converter (MP4, WebM, MOV, MKV) — Convert videos between MP4, WebM, MOV and MKV right in your browser. Compatible codecs are remuxed instantly with zero quality loss — nothing is ever uploaded.
- Video Trimmer & Cutter — Trim a video or cut a section out — drag handles, keep or remove the selection, export MP4/WebM. 100% in your browser, no upload, no watermark.
- Vertical Video Converter (16:9 → 9:16) — Turn landscape video vertical for TikTok, Reels & Shorts — drag a 9:16 crop or fit the whole clip on a blurred background. 100% in your browser, nothing uploaded.
- Add Subtitles to Video (Caption Burner) — Burn styled captions into your video — upload an SRT/VTT or auto-generate them with on-device Whisper AI. Styled for Shorts and TikTok; nothing is ever uploaded.
- Silence & Filler Word Remover — Cut dead air and “um”s from podcasts & voiceovers — silences detected, previewed and cleaned entirely on your device, never uploaded.
- Extract Audio from Video (Video to MP3) — Pull the soundtrack out of any video — convert MP4, MOV, WebM or MKV to MP3, WAV, OGG or FLAC, with optional trimming. Runs in your browser; nothing is uploaded.
- Add Watermark to Video — Stamp your own logo or text on a video — 9-position grid, size, opacity and tiling, with a live preview. 100% in your browser, nothing uploaded.
- Podcast Show Notes & Transcript Generator — Drop an episode file and get a timestamped transcript plus AI show notes, YouTube chapters, pull quotes and title ideas — transcribed and summarized on your device.
- YouTube Title, Description & Tags Studio — Write your YouTube title, description, tags & hashtags with live limit checks (100 / 5000 / 500 chars) and a search-result preview.