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Event posters

Festival line-up poster

Announce your festival line-up with a chrome festival name, three big headliners, the rest of the acts, the dates, and the ticket price.

A portrait festival poster with the word Duskfield in chrome letters over a violet, pink, and orange gradient, a wavy dark panel with the headliners Juno Blackwell, The Velvet Marrows, and Kite Parlour, ten more acts, and an orange starburst that says From £89.
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File types
PNGJPEGWebP
Size
1200 × 1600 px
Use case
Event posters
Licence
Free to copy and use in your own templates
Source
Made by thirds.ai with the open-licence Bricolage Grotesque and Space Mono fonts, original gradients, graphic shapes, and vector art, and fictional sample names.

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Three brands

Give every client this design in their own brand.

Add a client's logo, colours, and fonts in one step, and you've got a file that looks made just for them, with no new design to build.

  • A portrait festival poster with the word Duskfield in chrome letters over a violet, pink, and orange gradient, a wavy dark panel with the headliners Juno Blackwell, The Velvet Marrows, and Kite Parlour, ten more acts, and an orange starburst that says From £89.
  • The Festival line-up poster design made for a second business, with its own details and brand.
  • The Festival line-up poster design made for a third business, with its own details and brand.

About this design

What you can make with it.

Announce your festival line-up with three big headliners at the top. The rest of the acts, the dates, and the ticket price sit below, under your festival name in shiny chrome letters. Change the acts each time you announce more.

Your details

What you can change.

These are the words and numbers you swap for your own. The design stays the same.

  1. Festival nameA short text.
  2. DatesA short text.
  3. LocationA short text.
  4. Stages lineA short text.
  5. Ticket priceA short text.
  6. WebsiteA short text.
Sample data
{
  "festival_name": "Duskfield",
  "dates": "16 – 18 Oct 2026",
  "location": "Hartwell Meadows, Shropshire",
  "headliners": [
    "Juno Blackwell",
    "The Velvet Marrows",
    "Kite Parlour"
  ],
  "acts": [
    "Honey Static",
    "Mira Castellan",
    "Cobalt Hymns",
    "Silver Fennel",
    "The Loud Orchards",
    "Dovetail Radio",
    "Ruby Ashdown",
    "Moth Signal",
    "Lowlight Club",
    "Saffi Rowe"
  ],
  "stages_line": "Four stages, a torchlit parade, and late-night silent disco",
  "ticket_price": "From £89",
  "website": "duskfieldfestival.co.uk"
}

For developers

Make this file from your code or your AI tools.

Save your copy once, then send the new details with each request. Each finished file costs 1 credit.

API request
curl https://thirds.ai/v1/image \
  -H "Authorization: Bearer $THIRDS_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: festival-lineup-poster-1" \
  -d '{"template_id":"tpl_your_copy","version":1,"data":{"festival_name":"Duskfield","dates":"16 – 18 Oct 2026","location":"Hartwell Meadows, Shropshire","headliners":["Juno Blackwell","The Velvet Marrows","Kite Parlour"],"acts":["Honey Static","Mira Castellan","Cobalt Hymns","Silver Fennel","The Loud Orchards","Dovetail Radio","Ruby Ashdown","Moth Signal","Lowlight Club","Saffi Rowe"],"stages_line":"Four stages, a torchlit parade, and late-night silent disco","ticket_price":"From £89","website":"duskfieldfestival.co.uk"},"image":{"format":"png","width":1200,"height":1600}}'
MCP call
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "render",
    "arguments": {
      "output": "png",
      "idempotency_key": "festival-lineup-poster-1",
      "request": {
        "template_id": "tpl_your_copy",
        "version": 1,
        "data": {
          "festival_name": "Duskfield",
          "dates": "16 – 18 Oct 2026",
          "location": "Hartwell Meadows, Shropshire",
          "headliners": [
            "Juno Blackwell",
            "The Velvet Marrows",
            "Kite Parlour"
          ],
          "acts": [
            "Honey Static",
            "Mira Castellan",
            "Cobalt Hymns",
            "Silver Fennel",
            "The Loud Orchards",
            "Dovetail Radio",
            "Ruby Ashdown",
            "Moth Signal",
            "Lowlight Club",
            "Saffi Rowe"
          ],
          "stages_line": "Four stages, a torchlit parade, and late-night silent disco",
          "ticket_price": "From £89",
          "website": "duskfieldfestival.co.uk"
        },
        "image": {
          "width": 1200,
          "height": 1600
        }
      }
    }
  }
}

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