FPS Converter

About FPS Converter

Our Free Online FPS Converter allows you to change the frame rate (Frames Per Second) of your videos directly in your web browser. Whether you need to meet specific platform requirements, standardize footage, or prepare clips for slow-motion editing, this tool provides a simple solution. It uses FFmpeg.wasm for client-side processing, ensuring your video files are never uploaded to a server and your privacy is maintained.

What is FPS (Frames Per Second)?

FPS refers to the number of individual still images (frames) that are displayed per second to create the illusion of motion in a video. Common FPS rates include 24 FPS (standard for movies), 25 FPS (PAL standard), 30 FPS (NTSC standard), and higher rates like 50 or 60 FPS for smoother motion or slow-motion effects. This tool will attempt to display the estimated original FPS of your uploaded video.

Features:

• Client-Side Processing: Securely converts FPS using FFmpeg.wasm in your browser. Your files stay private.
• Multiple Video Formats: Supports common video types like MP4, WEBM, MOV, AVI (depending on browser & FFmpeg support).
• Estimated Original FPS Display: Shows an approximation of the uploaded video's original frame rate if detectable by the browser.
• Preset FPS Options: Quickly select common frame rates (e.g., 24, 25, 30, 50, 60 FPS).
• Custom FPS Input: Set any desired FPS within a supported range (e.g., 1 to 120 FPS), allowing for precise adjustments including fractional values like 29.97.
• Audio Preservation: Keeps the original audio track synchronized with the newly converted video.
• Dual Preview: See your original video and a preview of the FPS-converted version side-by-side (after processing).
• Easy Download: Download the converted video directly to your device (output as MP4).
• Progress Tracking: Monitor the conversion process with a real-time progress bar.

Who Will Benefit?

• Video Editors: Standardize footage from different sources to a common frame rate for easier editing.
• Content Creators: Ensure videos meet FPS requirements for platforms like YouTube, Vimeo, or social media.
• Animators: Adjust the frame rate of animated sequences.
• Gamers: Convert game recordings to different frame rates for sharing or analysis.
• Anyone needing FPS adjustment: A quick tool for anyone needing to change a video's frame rate without complex software.

How to Use:

1. Load Engine: Wait for the video processing engine (FFmpeg) to load (progress bar shown).
2. Upload Video: Drag and drop your video file onto the upload area or click "Select Video" to browse your device.
3. Preview Original & FPS: Your uploaded video will appear in the "Original Video" preview player. Its estimated original FPS and duration will be displayed below it.
4. Choose Target FPS: Select a preset FPS (e.g., 24, 30, 60) or choose "Custom" and enter your desired frame rate (e.g., 29.97) in the input field.
5. Convert: Click the "Convert FPS" button.
6. Wait & Preview: The progress bar will show the conversion status. Once complete, the converted video (with audio) will appear in the "Converted Video Preview" player. Any errors will be displayed in the status area.
7. Download: Click the "Download Converted Video" button to save the result.
8. Share (Optional): Click "Share Tool" to share the tool's link.

Note: Video processing happens entirely in your browser. Converting larger or longer videos, or making significant FPS changes, may take more time and consume more system resources (CPU/Memory). The displayed original FPS is an estimation provided by the browser and may not always be available or perfectly accurate. Output is in MP4 format with H.264 video codec and copied audio.

Quick Answer

To change a video's frame rate, upload it here, pick a preset (24, 25, 30, 50, 60) or type a custom value from 1 to 120 including fractional rates like 29.97, click Convert FPS, and download the MP4. Changing FPS re-times the frames but keeps the video the same length and keeps the audio in sync — it is not the same as speeding the video up or slowing it down. Converting down drops frames, converting up duplicates them; neither creates new motion detail, so the smoothest result always comes from footage that was shot at the rate you want. Everything runs in your browser with FFmpeg.wasm: no upload, no watermark, no account.

Common Use Cases

Standardising footage before editing

Clips from a phone, a camera and a screen recorder often arrive at 30, 25 and 60 fps. Converting them all to one rate before importing avoids stutter and drift on the timeline.

Meeting a platform's frame-rate requirement

Broadcast, ad and stock-footage specs frequently demand an exact rate such as 25 fps for PAL regions or 23.976 for film delivery.

Converting between PAL and NTSC standards

European material at 25 fps and North American material at 29.97 fps have to be matched before they can sit in the same project.

Shrinking a file

Halving the frame rate of a screen recording or a slideshow-style video roughly halves the number of frames to encode, which cuts the file size noticeably with little visible loss.

Preparing footage for slow motion

High-frame-rate source material gives an editor room to slow a shot down; converting a clip to a higher declared rate first can also help some editors interpret it correctly.

Smoothing out game and screen captures

Recordings made at an uneven or unusual rate can be normalised to a clean 30 or 60 fps so they play smoothly everywhere.

Frequently Asked Questions

How do I change the frame rate of a video?

Upload your video to this page, choose a preset frame rate or enter a custom value between 1 and 120, and click Convert FPS. When the progress bar finishes, preview the result and click Download Converted Video to save the MP4.

Does changing the FPS make the video faster or slower?

No. This tool re-times the frames so the video keeps its original duration and the audio stays in sync. Converting a 60-second clip from 30 to 60 fps still gives you a 60-second clip. If you actually want the video to play faster or slower, use the Adjust Video Speed tool instead.

Will converting to a higher FPS make the motion smoother?

Not really. Going from 30 to 60 fps duplicates existing frames rather than inventing new ones, so the motion carries the same amount of information it always did. Genuine smoothness has to be captured in the camera. Converting up is useful for matching a project's frame rate, not for improving the footage.

What happens when I convert to a lower FPS?

Frames are dropped at regular intervals. Going from 60 to 30 fps discards every second frame, which is usually invisible for talking-head or screen content but can make fast panning look slightly less fluid. It does reduce the file size.

Which frame rate should I choose?

24 fps is the cinema standard and gives a filmic look. 25 fps is the PAL broadcast standard used across Europe and much of Asia. 30 fps (strictly 29.97) is the NTSC standard for North America and the safe default for general web video. 50 and 60 fps suit sport, gaming and anything with fast motion, and are what most platforms prefer for high-motion uploads.

Can I enter a fractional frame rate like 29.97 or 23.976?

Yes. The custom field accepts decimals, so the broadcast rates 29.97, 23.976 and 59.94 all work. These odd numbers exist for historical NTSC colour-signal reasons and are still required by many delivery specifications.

Is my video uploaded to a server?

No. FFmpeg compiled to WebAssembly runs inside your browser tab, so the file is read from your device, processed on your own CPU, and written straight back locally.

Is the audio kept?

Yes. The original audio track is carried across and stays in sync with the picture, because the video's total duration does not change.

Why does the tool show a different original FPS than I expected?

The original rate is an estimate the browser reports, and it is not always available or exact — variable-frame-rate footage from phones and screen recorders in particular has no single true value. Treat it as a guide; the conversion itself targets the rate you choose.

Does converting reduce quality?

The output is re-encoded once with H.264, so there is a small generation loss, and converting down permanently discards the dropped frames. Resolution is unchanged. Convert from your original file rather than from an already-converted copy.

Related Tools

• Adjust Video Speed — Actually speed up or slow down a clip, rather than re-timing its frames.
• Video Compressor — Cut the file size further after lowering the frame rate.
• Video Splitter — Trim the clip before converting to save processing time.
• Merge Videos — Join clips once they all share the same frame rate.
• MP4 to GIF Converter — Turn the converted clip into an animated GIF.
• Video Bitrate Calculator — Work out the bitrate a given frame rate and resolution needs.

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