Castos
Free Podcast Tool

Make Your Podcast Cover Art In Minutes

Dynamo is Castos' free image maker for podcasters. Start from a template, add your show's name, and download a 3000 x 3000 cover ready for Apple Podcasts and Spotify, plus the same design in every size you post. No sign-up.

Make Your Cover
One podcast cover made in Dynamo, also shown as a YouTube thumbnail, Instagram post, and Story

Trusted by 42,000+ podcasts, including shows from

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How To Make Your Podcast Cover

  1. Step 1

    Pick A Starting Point

    Start from a template made for your kind of show, or from a blank cover. Switching templates keeps your title and subtitle, and you can undo any change.

  2. Step 2

    Make It Yours

    Choose from 26 fonts, any color, gradients, and effects. Search Unsplash for a photo or upload your own image, and add text, shapes, or a logo as layers.

  3. Step 3

    Download And Upload

    Download a 3000 x 3000 JPEG or PNG, then upload it to your podcast host. It shows up wherever your show is listed.

What You Can Make With Dynamo

One editor for your cover, the other sizes you post, episode art, and quote cards.

  • Start From A Template For Your Kind Of Show

    Dynamo has 11 starter designs, each based on a pattern from Apple's top podcast charts: big stacked type, a host photo with a dark fade, a serif title for true crime, and more. Type your show's name once and every template redraws with it. Most people see your cover as a small tile next to dozens of others, so the templates keep the title big and the extra words few.

    The Templates panel in Dynamo, with each starter design drawn with the show name The Maker Hour

  • One Design, Every Size

    Add a YouTube thumbnail, an Instagram post, a Story or Reel, and a share image for links. Your words, colors, and photos stay in sync, and each size keeps its own layout. Turn on the safe zone to see what each platform covers, like the video length in the corner of a YouTube thumbnail. Download one size, or all of them in a .zip.

    The Sizes panel listing five sizes, with the YouTube thumbnail open and its safe zone shaded

  • Episode Art For Every Episode

    Add the episode number, episode title, guest name, and a guest photo to your design. Each week, open the design from Designs, change those, and download. The episode shows in every size you've added, and the file name includes its number.

    The Episode panel with episode 48 and its title filled in, both shown on the cover

  • Quote Cards From Your Episodes

    Two quote card templates, Pull Quote and Sound Bite, put a line from an episode on a post along with who said it. Long quotes shrink to fit. If your episodes are transcribed, the transcript is the quickest place to find the line.

    The Pull Quote template in Dynamo, with a gold quote mark and its placeholder quote and guest name

Cover Ready? Publish Your Podcast In 3 Steps

  1. Upload a new episode in Castos

    Create Your Show

    Create a show in Castos, add your new cover art, and upload your first episode with its title and description.

  2. Fill in podcast details in Castos

    Get Your Feed And Website

    Castos creates the RSS feed podcast apps need and a customizable site where listeners can find every episode.

  3. Link your feed to each podcast directory

    Publish Everywhere

    Submit your feed to Apple Podcasts, Spotify, and other directories once. Future episodes are distributed automatically.

Frequently Asked Questions

How do I make a podcast cover?
Open Dynamo and start from a template or a blank cover. Type your show's name and host, pick a font and colors, and choose a background: a gradient, a color, a photo from Unsplash, or your own image. Then download it as a 3000 x 3000 JPEG or PNG.
What size should a podcast cover be?
Apple Podcasts accepts square covers from 1400 x 1400 to 3000 x 3000 pixels and prefers the largest size. Spotify and other apps take the same image. Dynamo always downloads covers at 3000 x 3000.
How large can the cover file be?
Dynamo's JPEG download stays just under 1 MB, which works for Apple Podcasts, Spotify, and other apps. PNG is there too if you want a lossless file, but it's bigger.
Where should the text go on my cover?
Apple doesn't crop or cover your show's cover, but apps round its corners and often show it as a small tile in a list. Keep the title big and the extra words few.
Can I use the Unsplash photos for my podcast?
Yes. Photos on Unsplash are free to use, including for commercial projects. A credit isn't required, but photographers appreciate one, so Dynamo gives you a credit line you can copy into your show notes.
Can I make a YouTube thumbnail from the same design?
Yes. Add a YouTube thumbnail, an Instagram post, a Story or Reel, or a share image. Your words, colors, and photos carry over, and each size keeps its own layout. You can download one size or all of them in a .zip.
Can I make episode art for every episode?
Yes. In the editor's Episode section, add an episode number, episode title, guest name, or guest photo to your design. For each new episode, change the words or the photo and download. The rest of the design stays the same, and the file name includes the episode number.
Is my design saved?
Yes, in your browser, as you work, up to your 10 most recent designs. Come back on the same device and browser and they're still there. Nothing is sent to Castos, so clearing your browser data, using a private window, or switching devices starts fresh. To keep a design for good or open it on another computer, download it as a design file.

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