EchoWave

EchoWave is a browser-based video and audio editor that turns audio files, such as podcast episodes or music tracks, into shareable videos without requiring an account or software installation. Users add waveform visualizers, animated captions, overlays, and templates, then export directly from the browser. Auto-captioning covers 86 languages with over 170 styling options, and an AI voiceover feature offers dozens of studio voices plus voice cloning. The platform targets podcasters, musicians, social media creators, marketers producing content at scale, and educators making instructional videos. It also includes screen and camera recording, a stock media library, clipboard paste for quick imports, and batch automation through CSV-driven rendering and a REST API, which lets teams generate many videos from one template programmatically. Rendering happens on EchoWave's own cloud servers, so a browser tab can be closed while an export finishes. Exports go up to 8K resolution at 120 frames per second in eight formats, including MP4, WebM, MOV, GIF, and audio-only files. The free tier is limited to 720p exports with an EchoWave watermark; paid plans remove the watermark and unlock resolutions up to 8K along with premium rendering settings. One limitation is that the site does not disclose a company name or founding year, so its track record is hard to verify independently.