No risk · Try before you buy 7-day free trial One-time purchase · Lifetime license

Turn podcasts into your knowledge base

Play, download, transcribe, translate, archive — all in one tool.

Play podcasts in-app, search and batch-download from Apple Podcasts, transcribe and translate locally with Faster-Whisper. No uploads, fully offline, your data stays on your device.

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Interface preview

Search & play

Search & play

Search Apple Podcasts, play in-app or add to download queue. Batch actions and resumable downloads supported.

Import audio

Import audio

Multiple ways to import audio files including local file drag-and-drop, RSS link parsing, flexible for different use cases.

Download queue

Download queue

Manage pending downloads, track progress and priority. Auto-organize when done for easier handling of large libraries.

Transcription tasks

Transcription tasks

Local high-quality transcription with multiple models and languages. Clear task list for batch processing and export.

Play with live subtitles

Play with live subtitles

Real-time transcription display while playing audio, with bilingual subtitle mode supporting side-by-side original and translation for enhanced language learning and comprehension.

Translation & knowledge base settings

Translation & knowledge base settings

Configure translation API (DeepL / OpenAI), download folder, and transcription defaults. Connect Notion or Obsidian to import transcripts as a knowledge base.

Why CastLoom Pro

Search & batch download

Search Apple Podcasts, batch download with resume. Manage large catalogs easily.

Local high-quality transcription

Faster-Whisper integration, multiple models, fast and accurate, all runs locally.

Built-in player

Play podcasts in-app with search and progress tracking for a seamless experience.

One-click subtitle translation

DeepL or OpenAI for multi-language subtitles. Great for learning and reuse.

Multi-format export

Export SRT, VTT, TXT, JSON, Markdown, Word (HTML) for editing, notes, and publishing.

Notion / Obsidian

Import transcripts or translations with one click to build your podcast knowledge base.

Privacy first, local first

Transcription and translation run locally. No uploads, no cloud. Your audio and text stay on your device.

CastLoom Pro = Podcast player + Downloader + Local transcription + Translation + Knowledge base
CastLoom Pro

CastLoom Pro

Turn Podcasts into your Second Brain with Local AI

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Download CastLoom Pro

One app for playing, downloading, transcribing, and archiving podcasts. Windows & macOS. Start your 7-day free trial after install, then buy once for a lifetime license.

Download for macOS Download for Windows