Embed once
Drop the URL into your <img src>. That's the only line of code you'll write.
https://cdn.swapmark.io/swapmark/logo.pngCopy
<img src="..." width="200" height="60">
Permanent URL · Infinite swaps
One URL.Every season.Zero redeploys.
Swapmark turns one permanent image URL into a date-aware swap point. Embed it once with a regular <img> tag, upload variants, and schedule them. The server resolves the right image at request time, in your timezone.
1 brand, 1 swapmark, free foreverNo credit cardcdn.swapmark.io
Live
Now servingDefault
Europe/Berlin · 14:02
Embedhttps://cdn.swapmark.io/swapmark/logo.png
<img src="https://cdn.swapmark.io/swapmark/logo.png" alt="Swapmark" width="200" height="60">
How it works
Three steps. Then it just runs.
Paste one URL, upload variants, schedule. After day one, your code never has to change again.
Upload variants
PNG, JPG, or WebP, up to 5 MB each. The first one becomes your default.
default
christmas
easter
Schedule
Pick date ranges. We resolve in your account's timezone, including DST.
ChristmasDec 1 – Dec 26P3
Valentine'sFeb 10 – Feb 15P2
Launch weekMar 18 – Mar 24P5
What you can swap
Logos, hero banners, favicons.
Every customer-facing image with a URL is a candidate. Watch them swap in real time.
Logohttps://cdn.swapmark.io/swapmark/logo.pngStarter and up
Hero bannerhttps://cdn.swapmark.io/swapmark/hero.webpSolo and up
Swapmark · DefaultFaviconhttps://cdn.swapmark.io/swapmark/favicon.icoSolo and up
Trustworthy by precision
Engineered to fade into the background.
Boring is the goal. Once the URL is embedded, you should forget Swapmark exists.
Resolves in your timezone.Europe/Berlin · America/Los_Angeles · Asia/Tokyo
5-minute edge cache.Cache-Control: public, max-age=300, stale-while-revalidate=60
Never breaks your site.Falls back to your default variant on any error.
One URL forever.https://cdn.swapmark.io/{account}/{asset}.png
Pricing
Start free. Pay when you're sure.
Starter is self-serve and free forever. Solo, Studio, and Agency are invite-only while we finalize billing in our region.
Starter
Ideal for testing one swap before you commit.
$0/ forever
$0 forever · No card required- 1 brand
- 1 swapmark
- Logo only
- 5 variants per swapmark
Solo
For one company with one logo, hero, and favicon. Pay once, keep it forever.
$10/ one-time
- 1 brand
- 3 swapmarks
- Logo, favicon, and hero
- 5 variants per swapmark
- Lifetime access
Studio
For small marketing teams managing a few brands.
$10/ month
or $100 / year · save $20- 5 brands
- 5 swapmarks per brand
- Logos, banners, favicons
- 10 variants per swapmark
Agency
For agencies and multi-brand managers.
$49/ month
or $500 / year · save $88- 25 brands
- 10 swapmarks per brand
- Logos, banners, favicons
- 20 variants per swapmark
Need more on any planExtra swapmark$6Extra variant$1One-time, no subscription
FAQ
Quick answers.
Do I need to change my code to swap?
No. The URL is permanent. You only edit it once, on day one. From then on, every swap happens in the dashboard.
What happens if I miss a schedule?
Your default variant keeps serving. Schedules are additive, never destructive. If anything fails, the default is the failsafe.
What file types are supported?
PNG, JPG, and WebP. Up to 5 MB per variant. Upload at 2x resolution for retina.
How do timezones work?
Each account picks an IANA timezone, like Europe/Berlin or America/Los_Angeles. All schedules resolve in that timezone, including daylight saving transitions.
How fast does a swap propagate?
About five minutes, the length of our edge cache. For an immediate switch, hit Purge cache in the dashboard.
Ship your first swap this week.
Forever-free Starter. Schedule a Christmas swap before December.