How to create a slideshow

1. Upload your images

Choose or drag in up to ten PNG, JPG, or WebP images. Slidiz creates one slide per image and preserves the order you selected.

2. Arrange your slides

Drag thumbnails to reorder the deck, add new slides, remove slides you do not need, or replace an individual image.

3. Choose a platform

Preview your deck in TikTok, Instagram, or YouTube Shorts dimensions using the platform controls at the top of the editor.

4. Add optional captions

Add headline and body text where needed, then adjust font, size, color, alignment, placement, background, shadow, and opacity.

5. Import captions from a file (optional)

Instead of typing every slide, open the Post tab and choose Import captions to autofill the whole deck at once. Slidiz reads .json, .txt, and .md files.

For the best results, use a JSON file. Each entry in the slides array maps straight onto a slide — headline and body become the caption text, and an optional text_position(top, center, or bottom) sets where it sits. A caption_block fills your post caption, and any hashtags at the end of it are split out into the Hashtags field automatically.

Tip: if you write your slides with an AI assistant, just ask your LLM to output the slides as JSON in this exact format and import the result straight into Slidiz.

{
  "slides": [
    { "headline": "what i started using when my skin barrier wouldnt heal",
      "body": null, "text_position": "bottom" },
    { "headline": "ceramides",
      "body": "the lipids your barrier is built from.",
      "text_position": "center" }
  ],
  "caption_block": "the ingredients that finally calmed my dryness. #skincare #skinbarrier"
}

The number of slides in the file should match the slides in your deck — Slidiz applies them in order, top to bottom. Extra fields you may already have (image prompts, sources, notes) are ignored, so you can drop in an existing JSON file as-is.

6. Review your post

Add an optional post caption and decide whether exported slides should include your text overlays.

7. Download and post

Download a ZIP containing numbered PNG slides, your platform caption, and hashtags, ready for your final review and upload.