PNG to FLV Converter

Convert PNG to FLV Online

Wrap a still PNG image into an FLV (Flash Video) clip that holds the picture on screen for a set number of seconds. This adds no motion or animation — it is a static-image video, useful when an older Flash-based player, authoring tool, or archival pipeline specifically expects an .flv file. For anything you plan to play or share today, convert to MP4 instead: Adobe Flash Player reached end of life on December 31, 2020, and FLV no longer plays natively in modern browsers.

How to Convert PNG to FLV

1. Upload Your PNG File: Drag and drop your image onto the page or click "+ Add Files" to browse. Add several PNGs if you want to stitch them into one clip.
2. Set Image Duration: Choose how long each frame is held — the default is 5 seconds per image. This is the main control, since a single still has no inherent length.
3. Pick Merge Strategy and Resolution: Use "Merge images" to combine multiple PNGs into one FLV, or "Video per image" for separate files. Keep the original resolution or set a fixed/preset size, and choose a Background Color for any letterbox padding.
4. Convert and Download: Click "Convert" and save your FLV. No sign-up, no watermark.

FLV vs MP4 — Which Output to Choose

If your target is anything but a legacy Flash environment, choose PNG to MP4. Already have old .flv files to modernize? Use FLV to MP4.

Frequently Asked Questions

Does converting a single PNG to FLV add any motion or animation?

No. A single PNG is one still frame, so the output simply displays that image for the duration you set (5 seconds by default). The result is a static-image video — nothing pans, zooms, or animates. To create actual movement, you would need multiple images or a video editor; this tool only encodes the frames you provide.

Why is the FLV file larger than I expected for one image?

FLV's Sorenson Spark and VP6 codecs are older and less efficient than the H.264 used by MP4, so a still held for several seconds can take more space than the same clip in MP4. In our testing, a 1920x1080 PNG held for 5 seconds produced an FLV in the low hundreds of kilobytes; the same clip as MP4 was smaller at equal visual quality. If file size matters, export to MP4 instead.

Can FLV preserve my PNG's transparency?

No. PNG supports an alpha channel for transparency, but FLV is a video container with no alpha support, so transparent areas are flattened against a solid background. Pick a Background Color in Advanced Options to control what fills those regions — black is the default.

Will this FLV play in a normal web browser or on my phone?

Not reliably. Adobe Flash Player reached end of life on December 31, 2020, and all major browsers blocked Flash content starting January 12, 2021, so FLV no longer plays natively in Chrome, Firefox, Edge, or Safari, nor on most phones or smart TVs. Desktop players such as VLC still open FLV files. For everyday playback choose MP4.

Why would anyone still convert to FLV in 2026?

The honest answer is: rarely, and only for legacy reasons. Some older streaming servers, screen-recording archives, Adobe Animate projects, and learning-management systems were built around .flv and still expect that exact container. Outside those cases there is no advantage over MP4, which is smaller, higher quality, and plays everywhere — so convert to FLV only when a specific old system requires it.