PNG to SWF Converter

Convert PNG images to SWF (Flash) for archived Flash-based systems. Flash was discontinued in 2020 — for modern use, convert to MP4 or WebM.

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Supports: PNG

OptionsAdvanced Options - Our defaults are optimized for the best results. We recommend you keeping the defaults unless you have a specific need.
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Merge strategy
Select Merge images to combine all uploaded files into a single video. Use Video per image to create a separate video for each individual file.
Image Duration
Duration
This is amount to time a single image is displayed on the output video. Only applied to images that are not GIF.
Background Color
Background Color
File Compression
Preset
Video resolution

How to Convert PNG to SWF Online

  1. Upload Your PNG Files: Click "+ Add Files" to select PNG images from your computer, Google Drive, or Dropbox. Upload multiple images for animation.
  2. Choose Settings: Set image duration per frame (0.1s to 10s), background color, video codec, compression method (quality preset, target file size %, CRF), and resolution.
  3. Convert and Download: Click "Convert" and download your SWF file.

What Is SWF?

SWF (Small Web Format) was Adobe Flash's file format for interactive content and animations. Flash was discontinued December 31, 2020, and all modern browsers removed Flash support in 2021.

Why Convert PNG to SWF?

The only remaining use cases are:

  • Archived Flash-based e-learning not yet migrated to HTML5
  • Legacy enterprise systems requiring Flash input
  • Flash content preservation using emulators like Ruffle

Competitors like ahaconvert.com notes "since Adobe discontinued Flash Player in 2020, SWF files are now considered outdated — most browsers no longer support them." anyconv.com explains SWF files "can be opened with SWF File Player, Ruffle (Flash emulator), or Adobe Flash Projector."

Frequently Asked Questions

Is it free?

Yes. Completely free with no sign-up required.

Can modern browsers play SWF?

No. All major browsers removed Flash support in 2021. Use Ruffle (open-source Flash emulator) for playback.

Should I use SWF or MP4?

MP4 for everything modern. Only use SWF for specific legacy systems.

Does it work on mobile?

Yes. The converter works in any browser. SWF files won't play on mobile devices.

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