AI-POWERED · PODCAST GROWTH TOOL

Your podcast deserves an
audience that matches it

CastFlow turns every episode into Twitter threads, LinkedIn posts, and YouTube Shorts automatically — and shows you exactly which topics are growing your audience.

Start for free See how it works

No credit card · 5 repurpose jobs free · Takes 2 minutes to set up

Everything a podcaster needs to grow

Analytics and repurposing in one tool. No more switching between Descript, Castmagic, and five social media schedulers.

📊

Episode analytics that matter

See plays, listen-through rate, and subscriber growth across Spotify and Apple Podcasts in one dashboard. No more platform-hopping.

✂️

AI content repurposing

Paste your transcript. Get back a Twitter thread, LinkedIn post, and YouTube Shorts suggestion — all optimized for engagement, not just length.

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Google Trends topic radar

Find out what your audience is searching for before you record. Enter any keyword and get an episode angle, growth trend, and competitor gap analysis.

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Three AI models, one price

Pro users get Claude (Anthropic's best) with automatic fallback to Doubao. Free users get solid AI too. No degraded experience.

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Smart caching

Already repurposed an episode? CastFlow caches results for 7 days. Regenerating clips doesn't cost you an extra job from your quota.

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Built on Cloudflare

Runs at the edge in 300+ cities. Your data lives in Cloudflare D1 and R2 — no AWS bill surprises, no egress fees, no downtime.

From episode to social content in 3 steps

No learning curve. No integrations to configure. Just paste and go.

Step 01

Paste your transcript

Copy from your transcription tool, or paste raw audio text. Any length works — CastFlow extracts the key moments automatically (up to 12,000 chars on Pro).

Step 02

AI extracts the gold

Claude (or Doubao for free tier) finds the 3 most shareable moments and rewrites them for each platform's native format and algorithm.

Step 03

Copy, post, grow

One-click copy for each clip. Post directly or schedule with Buffer. Your episode keeps working for weeks after it drops.

Simple, transparent pricing

Start free. Upgrade when you're ready to grow faster.

Free

$0/month

Everything you need to get started and validate the workflow.

5 repurpose jobs/month
AI clip generation (Doubao)
Analytics dashboard
Google Trends radar
Twitter, LinkedIn, YT Shorts

Get started free

Frequently asked questions

How is CastFlow different from Castmagic?+

Castmagic focuses on transcription and broad content generation. CastFlow combines analytics (so you know which episodes to repurpose) with platform-specific clip writing that's optimized for engagement, not just length. Full comparison →

Do I need to upload audio files?+

No. Just paste a transcript. CastFlow works with text from any source — Whisper, Descript, Otter.ai, or a manual transcription. Uploading audio is optional for Spotify/Apple analytics integration.

What AI models does CastFlow use?+

Pro and Team users get Claude (Sonnet) for the highest-quality rewrites. If Claude is unavailable, we automatically fall back to Doubao (火山引擎). Free users get Doubao by default. All tiers also have a Workers AI fallback to ensure 100% uptime.

Is my podcast data private?+

Yes. Your transcripts and clips are stored in Cloudflare D1 and R2, scoped to your account. We don't share or sell your content. CastFlow is built on Cloudflare's infrastructure which meets SOC 2 and ISO 27001 standards.

Can I cancel anytime?+

Yes. No contracts, no cancellation fees. Cancel from the dashboard at any time and you'll retain access until the end of your billing period.

Your podcast deserves anaudience that matches it