Podcastle

Podcastle is an audio editing tool. Chat-based AI editor for podcasts, interviews and social clips: it removes filler and pauses, cleans audio, adds captions, generates B-roll and music, and cuts short clips from long recordings, all through conversational prompts in the browser.

Podcastle (the product now branded Async) is a chat-driven creative suite for video and audio production. Instead of learning a timeline editor, you describe what you want in a message and the platform acts on it: uploading footage, cutting dead air, adding subtitles, generating B-roll, and exporting a finished clip. The site positions it as giving a solo creator the output of a full production team, with podcast episodes, interviews, and short-form social clips among the explicitly supported formats. The assistant is trained on professional editing habits, and that shows in the task list. It strips filler words, pauses, repeats and weak takes from a rough cut, syncs the edit to a chosen music track so pacing and scene order follow the beat, and assembles captions with corrected line breaks. Audio cleanup runs through a tool called Magic Dust for noise removal and voice clarity. Generative additions (B-roll, visuals, music, voiceovers) happen inside the same conversation, and a clips feature pulls the strongest moments out for TikTok, Reels, Shorts or ads. You can save a personal editing style as a reusable skill so repeated projects follow your taste rather than defaults. In practice the workflow suits podcasters who record long interviews and need publishable audio plus derivative clips, and small teams producing ads, explainers or onboarding videos from a template. Everything runs in the browser, and a companion iOS app is available for recording. Async is best understood as an AI layer over editing rather than a replacement for frame-level control: you trade precise manual adjustments for speed, and the platform's own FAQ leans into that trade for people with no editing background. For podcasters weighing it against dedicated audio editors, the draw is consolidation, since capture, cleanup, captions, dubbing and social repurposing sit in one place.