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Convert FLV to MP4 Online — Free FLV toMP4Converter
Bring Flash-era FLV videos back to life as MP4 files that play everywhere. No software needed.
This tool is being improved
Explore other toolsDaily limit reached
Fetching a video from a link can take longer than uploading a file — up to a minute or two for a long video.
Your file is kept — processing resumes automatically.
This limit resets tomorrow. Go Pro to never hit it again, on every tool.
Your file is kept: processing resumes where it stopped.
Your file is kept: processing resumes where it stopped.
One job at a time. Yours finishes, then this one starts.
Drop to upload
Drop your file here
Or use the other entry, it stays available.
MP4, MOV, AVI, MKV, WebM
Free to try · no account required
Free to try · no account required
Drop to upload
Convert to:
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Timings preserved
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Duration
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Free to try · no account required
Free to try · no account required
Quota is based on full video duration. Queued and running tasks are included; the exact balance is checked before transfer.
COMPATIBLE PLATFORMS
Your Hashtags Are Ready!
Hashtags copied to clipboard — paste them in your post!
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Conversion Complete!
Preview below. Download your file whenever you like.
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Translation Complete!
Preview below. Download your file whenever you like. Timecodes are preserved.
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Pick two different languages to start dubbing.
The sample plays in the target language so you can compare before starting.
Keep original voice underneath
Low volume, behind the translated voice.
Your Video Script
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Your video is received and saved. It will start as soon as a machine frees up.
It's ready
This stage works through the video end to end. The percentage will only move once it's done.
This is the longest stage of the job. It is moving, even when the number isn't.
Cancel now? The work already done will be lost and the file will have to be uploaded again.
Get an email the moment it's ready.
Klipa is preparing your preview
Your best clip is being cut and auto-reframed (face tracking). This preparation happens only once — about 30 seconds.
Upgrade to generate your clips with this style, or continue free with the Minimal style.
Burning in the captions…
Klipa is burning your captions into this clip, in the style you chose — identical to the preview. This takes a moment, keep the page open.
The burn failed — nothing was lost, you can retry.
This file is no longer available
Keep your videos between sessions and get free credits for your next exports.
Preparing your logo-free video… The download will start on its own.
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Convert THIS video in full · up to 2 GB / 2 h · one-off
File expired
Relaunch burningClean file, no watermark.
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Monthly limit reached
Your free plan hit its burn limit this month. Your settings are saved — unlock this result or go Pro to burn now.
Subtitle workshop
Your subtitled video is readyFree download stays available below: the videos will carry the Klipa logo in the center and bottom.
We're preparing your logo-free videos…
We couldn't prepare your logo-free videos. Write to us — your purchase is safely recorded.
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Your video is ready
Download the full video, in full quality
Find all your videos, wherever you are
Longer videos and larger files with Pro.
Your original video is still available. Try another tool:
You've used up your 120 minutes
Your downloads have used your allowance, and this video needs more. The Downloads plan opens 100 hours of video per month — enough to stop counting altogether.
- 100 hours per month — 12× your current allowance
- HD and 4K, without paying video by video
- Every platform, no app and no ads
No commitment — cancel in one click, any time.
Convert FLV to MP4 — rescue your Flash-era videos
FLV (Flash Video) powered online video for a decade: clip sites, screen recorders, e-learning platforms. Flash is gone, and with it the players that could read those files. Klipa's FLV to MP4 converter takes your FLV files and returns standard MP4s that open anywhere — often without re-encoding, because many FLV files already hold H.264 video inside.
It all runs in your browser, no installation. Once converted, use the compressor to lighten big archives, or the main converter for any other format.
How to convert FLV to MP4
Upload your FLV file
Drag and drop your FLV video — clips saved from the old web, screen recordings, downloads from the Flash era. They still contain perfectly good video.
The conversion runs in the cloud
Our server unpacks the Flash Video container and delivers a standard MP4 (H.264 + AAC). When the inner video is already H.264 — very common with FLV — it is copied without any quality loss.
Save your universal MP4
Your video now opens in every player, phone and editor. Trim it, compress it, or turn a moment into a GIF.
Why convert FLV to MP4?
Flash is dead, your videos aren't
Flash Player was retired in 2020 and modern players ignore FLV. MP4 brings those files back to every screen.
Often lossless
Many FLV files already contain H.264 video: we just change the container, with zero quality loss.
Nothing to install
No codec packs or abandoned desktop tools from download sites — the conversion runs on our servers.
Clean, no watermark
You get your own video back, full length, without any logo added.
FLV TO MP4: USE CASES
Old web archives
Videos saved from the 2000s internet — clips, animations, interviews — become playable and shareable again in MP4.
E-learning content
Training courses and screencasts recorded in the Flash era can rejoin your modern library, ready for any LMS or player.
Screen recordings
Old capture tools often produced FLV. Convert those recordings to MP4 to re-edit or publish them today.
Related Tools
FLV to MP4 — FAQ
Is the FLV to MP4 conversion free?
Yes — free conversions every day, no account needed to try. Bigger files and higher daily volume come with Pro.
Will I lose quality?
Usually not at all: many FLV files contain H.264 video, which we copy as-is into the MP4 (a simple container change). Older codecs are re-encoded at high quality.
Why can't anything play FLV anymore?
FLV depended on Adobe Flash, which was discontinued in 2020. Modern browsers and players dropped it — the videos themselves are fine, they just need a modern container.
Is there a size or length limit?
Without an account, conversions accept up to 500 MB and 5 minutes per video (1080p max). Pro raises this to 2 GB and 2 hours.
Does the audio convert too?
Yes, the audio track is converted (or copied) together with the video, keeping everything in sync.
Can you convert SWF files too?
No — SWF is an interactive Flash application format, not a video. Only FLV (and standard video formats) can be converted here.
Is my file kept on your servers?
No. Files are deleted automatically after processing — 48 h for anonymous uploads, 7 days with a free account.
What Creators Say
From FLV to MP4 — your videos outlive Flash
Flash may be history, but your videos don't have to be. Klipa converts FLV to universal MP4 online, watermark-free — often with zero quality loss. Follow up with the cutter, the compressor or AI transcription to modernize the whole archive.
