Distribution
12 Aug 2026 · 1 min readPodcast Artwork Specifications: The Technical Details
Dimensions, file formats, and the exact requirements every directory enforces.
Dimensions, file formats, and the exact requirements every directory enforces.
The landscape
When it comes to the exact specs, no guessing, the details matter. Here's what the evidence and practitioner experience point to:
- Show artwork: 1400×1400 to 3000×3000 pixels, square, JPG or PNG, RGB colour space — 3000×3000 is the safe standard.
- Episode artwork (Podcasting 2.0): same specs per episode — PodKrafter generates episode covers automatically.
What actually works
When it comes to the exact specs, no guessing, the details matter. Here's what the evidence and practitioner experience point to:
- The thumbnail test: 140px at 100% zoom is the real-world render size — design for it.
- File size: keep under 500KB for feed speed without sacrificing quality — high-quality JPG or optimized PNG.
Putting it into practice
When it comes to the exact specs, no guessing, the details matter. Here's what the evidence and practitioner experience point to:
- Transparency and rounded corners are unnecessary — apps apply their own; design for a full-bleed square.
- Update the art when the brand evolves — artwork changes propagate to directories on the next feed refresh.
Key takeaways
- Show artwork: 1400×1400 to 3000×3000 pixels, square, JPG or PNG, RGB colour space — 3000×3000 is the safe standard.
- File size: keep under 500KB for feed speed without sacrificing quality — high-quality JPG or optimized PNG.
- Update the art when the brand evolves — artwork changes propagate to directories on the next feed refresh.
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