12 Best FPS Converter Tools to Change Video Frame Rate in 2026

What Is Frame Rate and Why Does It Matter?

Frame rate (measured in frames per second, or FPS) is the number of individual images displayed each second during video playback. Higher FPS values produce smoother motion, while lower values create a more cinematic or stutter-prone look.

Common frame rates and their uses: 

• 24fps — Standard for cinema and film production; gives a "movie feel"
• 30fps — Default for most consumer video cameras and standard TV broadcast
• 60fps — Preferred for gaming content, sports, and fast-action footage
• 120fps — Used for high-quality slow-motion playback and professional sports capture

Different platforms and devices have different FPS requirements. YouTube accepts up to 60fps, TikTok caps at 40fps, and Facebook maxes out at 30fps. An FPS converter ensures your video plays correctly on any platform without dropped frames or playback issues.

Top 3 FPS Converters at a Glance

8 Best Desktop FPS Converter Software

1. UniFab Smoother AI

OS: Windows and Mac | Price: 30-day free trial (no watermark); $104.99 lifetime

UniFab Smoother AI is purpose-built for AI-powered frame rate conversion. It uses deep learning frame interpolation to generate new intermediate frames, producing genuinely smoother motion rather than simply duplicating existing frames.

Key Features: 

• AI frame interpolation up to 120fps (integer multiple or specific target FPS)
• GPU acceleration (NVIDIA CUDA / AMD) for fast processing
• Built-in video editing: cropping, trimming, audio customization, noise removal
• Batch processing for multiple files
• MKV and MP4 output with customizable codec and bitrate

Pros: 

• AI interpolation produces natural, smooth motion without frame duplication artifacts
• Hardware acceleration keeps processing times short even for 4K content
• Beginner-friendly interface with advanced options available
• 30-day trial includes all features without watermarks

Cons: 

• Paid subscription after trial period

Best for: Anyone who needs professional-quality FPS conversion with AI frame interpolation, from casual creators to professional editors.

Steps To Use The Frame Rate Converter To Get Desired Frame Rates

Discover how to increase FPS effortlessly with UniFab Smoother AI.

2. HandBrake

OS: Windows, macOS, Linux | Price: Free (open source)

HandBrake is one of the most popular free video converters available. It supports frame rate adjustment from 5fps to 120fps with flexible output presets.

Key Features: 

• Custom frame rate from 5 to 120 FPS
• Preset library for common output targets
• Multiple queue processing for batch conversion
• Filters: noise reduction, sharpening, rotation, subtitle addition
• Supports MP4, WebM, and MKV output

Pros: 

• Completely free with no watermarks or limitations
• Cross-platform (Windows, Mac, Linux)
• Reliable output quality with preserved file integrity
• Active community and frequent updates

Cons: 

• No AI frame interpolation — only frame duplication/drop
• No drag-and-drop file import
• Basic interface may confuse absolute beginners

Best for: Budget-conscious users who need reliable FPS conversion without spending anything.

3. VideoProc Converter AI

OS: Windows and macOS | Price: $45.95 lifetime (1 PC)

VideoProc Converter AI offers two FPS conversion methods: a traditional converter (15-60fps) and an AI-powered frame interpolation engine (up to 5x multiplier) using deep convolutional neural networks.

Key Features: 

• Dual conversion modes: manual FPS setting + AI frame interpolation
• Ready-made export templates for YouTube, Vimeo, and social media
• DVD and YouTube video extraction
• Video editing: captions, watermarks, effects
• NVIDIA and AMD GPU acceleration

Pros: 

• Easy-to-understand interface with guided workflow
• High-speed output even at high resolutions
• Lightweight installation footprint

Cons: 

• AI feature only available on Windows
• Free version adds watermarks to exports

Best for: Users who want a balance of manual control and AI-powered interpolation at a reasonable price.

4. Wondershare Filmora

OS: Windows and macOS | Price: 7-day free trial; monthly from $19.99

Filmora is a popular video editor with FPS conversion built into its export workflow. It makes changing frame rates easy within a full-featured editing environment.

Key Features: 

• FPS adjustment integrated into the export settings
• 100+ advanced video editing tools (transitions, effects, text templates)
• 15M+ creative assets in the library
• Multiple output formats optimized for social media
• 1GB cloud storage with paid plans

Pros: 

• Intuitive interface that beginners can learn quickly
• Doubles as a complete video editor
• Extensive built-in effects and templates

Cons: 

• No AI frame interpolation
• Relatively expensive for FPS conversion alone
• Lacks multi-cam editing

Best for: Video editors who need FPS adjustment alongside a full editing suite.

5. EaseUS VideoKit

OS: Windows and macOS | Price: Free trial; monthly from $17.97

EaseUS VideoKit offers customizable FPS conversion from 12fps to 60fps, including fractional rates like 59.94fps for broadcast compatibility.

Key Features: 

• Custom FPS selection including fractional rates (23.976, 29.97, 59.94)
• HD, 4K, and 8K resolution support
• Built-in transitions, filters, and sound effects
• Advanced algorithms for fast processing

Pros: 

• Supports broadcast-standard fractional frame rates
• Clean, accessible interface
• Good performance on large files

Cons: 

• Maximum 60fps output (no 120fps option)
• Limited advanced features for professional workflows

Best for: Broadcast professionals who need precise fractional frame rate control.

6. MiniTool Video Converter

OS: Windows only | Price: Free basic version; yearly subscription $49.99

MiniTool Video Converter is a multifunctional tool that seamlessly integrates video format conversion, downloading, and screen recording capabilities under one roof. This free tool also serves as a video frame rate converter. Users can adjust frame rates and convert video formats simultaneously, with options to customize resolution, quality, encoder, and more.

Key Features: 

• Batch file conversion with format and FPS adjustment
• Screen recording in WMV, MP4, TS, MKV, FLV
• YouTube audio and video downloading
• 1000+ output format compatibility

Pros: 

• All-in-one tool (converter + downloader + recorder)
• Free basic version covers most needs
• Fast audio/video conversion

Cons: 

• Limited to 30fps maximum output
• Windows only — no Mac support
• Batch conversion restricted to paid version

Best for: Windows users who want a multi-purpose tool for converting, downloading, and recording.

7. VLC Media Player

OS: Windows, macOS, Linux | Price: Free (open source)

VLC is primarily a media player, but its conversion feature includes FPS adjustment through the Video Codec settings. It supports frame rates up to 99fps.

Key Features: 

• FPS adjustment via Media > Convert/Save > Video Codec
• Supports AVI, MPEG, WMV, DVD, CD formats
• Cropping and deinterlacing filters
• Batch video conversion
• Lightweight, cross-platform utility

Pros: 

• Completely free and open source
• You probably already have it installed
• Supports both increasing and decreasing frame rates

Cons: 

• FPS conversion is buried in menus — not intuitive
• Steeper learning curve for the conversion feature
• No AI frame interpolation

Best for: Users who already use VLC and need occasional, basic FPS changes.

8. VideoPad Video Editor

OS: Windows and macOS | Price: Free for non-commercial use

VideoPad is a professional editing suite that includes FPS selection during its export process. It supports a wide range of output formats and frame rate options.

Key Features: 

• Frame rate selection during export
• Compatible with MP4, AVI, MPEG, WMV, APNG, DivX
• Extensive transitions, effects, and customizable templates
• Color correction and visual effects tools

Pros: 

• Free for personal use
• Professional-level editing features
• Wide format and codec support

Cons: 

• Interface is less polished than competitors
• Not a dedicated FPS converter — editing-focused

Best for: Users who want a free, feature-rich editor that includes FPS conversion during export.

4 Best Free Online FPS Converters

9. Video2Edit

Platform: Web | Price: Free basic; Pro $12/month

Video2Edit is a web-based FPS converter with manual FPS selection from 1fps to 120fps. It handles a wide range of formats including camcorder footage.

Pros: Beginner-friendly, supports 120fps, no installation 

Cons: Limited advanced editing, dependent on internet speed

10. VEED.io

Platform: Web | Price: Free trial; Pro $7.20/user/month

VEED.io offers an advanced online video editor with FPS conversion. Preset options include 16fps, 24fps, 30fps, and 60fps, plus quality adjustment before export.

Pros: Clean interface, up to 1GB file uploads on free tier, creative features (chroma key, drawing tools) 

Cons: Free exports include watermark, premium features require payment

11. FreeConvert

Platform: Web | Price: Limited free; basic plan $12.99/month

FreeConvert supports cloud imports (Dropbox, Google Drive, URL) and offers extensive output customization with 256-bit SSL encryption for secure file transfer.

Pros: Cloud integration, secure transfer, 1500+ conversion types 

Cons: 1GB max file size on free tier, 20-minute daily conversion limit for free users

12. AConvert

Platform: Web | Price: Free

AConvert is a straightforward online FPS converter accepting files from local storage, URLs, Google Drive, and Dropbox. It provides source file analysis showing size, resolution, and color details.

Pros: Completely free, batch conversion, simple interface 

Cons: 200MB file size limit, internet dependent, basic functionality only

Full Comparison: All 12 FPS Converters

How to Choose the Right FPS Converter

Your ideal FPS converter depends on your specific needs:

• Need AI frame interpolation? Choose UniFab Smoother AI or VideoProc Converter AI. Only AI tools generate genuine new frames for naturally smooth motion.
• On a tight budget? HandBrake and VLC are completely free with no watermarks. AConvert is the best free online option.
• Need 120fps output? UniFab, HandBrake, and Video2Edit support 120fps. Most other tools cap at 60fps.
• Need batch processing? UniFab, HandBrake, and MiniTool support multi-file queues.
• No software download? Use Video2Edit, VEED, FreeConvert, or AConvert in your browser.
• Need fractional frame rates? EaseUS VideoKit supports broadcast-standard rates like 23.976 and 59.94.

How to Convert FPS: Quick Guide

The process is similar across most tools:

1. Open your FPS converter and import the video file
2. Select the target frame rate (common options: 24, 30, 60, or 120fps)
3. Enable AI interpolation if available — this generates new frames instead of duplicating
4. Configure output settings (format, resolution, bitrate)
5. Start conversion and wait for processing
6. Verify the output by playing back the converted video

Pro tip: If you are upconverting (e.g., 30fps to 60fps), always choose AI frame interpolation over simple frame duplication. Duplicated frames create a visible stutter effect, while AI-generated frames produce genuine smooth motion.

FAQs about FPS Converter

What is an FPS converter?

An FPS converter is a tool that changes the frame rate (frames per second) of a video file. It can increase FPS for smoother playback — such as converting 30fps to 60fps — or decrease FPS for smaller file sizes and platform compatibility. Advanced FPS converters use AI frame interpolation to generate new intermediate frames, producing smoother results than basic frame duplication.

How does AI frame interpolation work in FPS converters?

AI frame interpolation uses neural networks to analyze motion between existing video frames and generate new intermediate frames. Instead of copying an existing frame to fill gaps (which looks stuttery), the AI predicts where objects would naturally be at the in-between moment and creates a realistic new frame. This produces genuinely smooth video when upconverting frame rates. Tools like UniFab Smoother AI and VideoProc Converter AI use this technology.

Is there a completely free FPS converter?

Yes, several options are completely free. HandBrake is the best free desktop FPS converter — open source, cross-platform, no watermarks, and supports up to 120fps. VLC Media Player also includes free FPS conversion in its conversion tools. For online use, AConvert is entirely free with no hidden costs, though it has a 200MB file limit. UniFab Smoother AI offers a 30-day free trial with full features and no watermark.

Does changing FPS affect video quality?

Downconverting (dropping FPS) discards frames but does not degrade the quality of remaining frames. Upconverting without AI simply duplicates frames, adding no new visual information and creating a stuttery look. AI frame interpolation generates new frames that approximate real motion, preserving perceived quality. In all cases, the re-encoding step during conversion can introduce minor compression artifacts. Using high bitrate output settings minimizes this quality loss.

What frame rate should I use for social media?

Each platform has different FPS requirements: YouTube supports up to 60fps (24-60fps recommended), TikTok caps at 40fps, Facebook maxes at 30fps, Twitter recommends 30fps or 60fps, and Instagram supports 23-60fps for Reels and 30fps for feed videos. If you are unsure, 30fps is the safest universal choice — every platform handles it well and file sizes stay reasonable.

Can I convert 30fps to 60fps without losing quality?

Yes, but only with AI frame interpolation. Standard conversion simply duplicates each frame, creating a stuttery look that is technically 60fps but visually identical to 30fps. AI-powered tools like UniFab Smoother AI analyze motion between frames and generate new intermediate frames that represent natural movement at the in-between points. The result is genuinely smoother 60fps output that looks natural. You can use a 60 fps converter to adjust your videos to the ideal frame rates.

What is the difference between constant and variable frame rate?

Constant frame rate (CFR) maintains the same FPS throughout the entire video — every second contains exactly the same number of frames. Variable frame rate (VFR) adjusts FPS dynamically based on scene complexity — more frames during fast motion, fewer during static scenes. Most editing software and platforms prefer CFR for reliability. If your source video uses VFR (common in screen recordings and phone videos), an FPS converter can standardize it to CFR for smoother editing.

How long does FPS conversion take?

Processing time depends on video length, resolution, conversion method, and hardware. Basic FPS changes (frame duplication/drop) with HandBrake or VLC process a 5-minute 1080p clip in under a minute. AI frame interpolation with UniFab or VideoProc takes 3-10 minutes for the same clip, depending on GPU power. 4K footage takes 3-5x longer than 1080p across all tools. GPU acceleration significantly reduces processing time for AI-powered conversions.

Can I convert FPS on my phone?

Yes, but options are limited. Mobile apps like Video Converter Compressor and CapCut's mobile editor offer basic FPS adjustment in their export settings. However, no mobile app currently offers AI frame interpolation — that requires desktop software. Mobile conversion is best for simple changes like reducing 60fps to 30fps for file size savings. For quality-focused upconversion, use a desktop tool.

Does higher FPS mean better video quality?

Not necessarily. Higher FPS means smoother motion, which is beneficial for fast-action content like gaming and sports. However, it also means larger file sizes and more processing power required. For cinematic content, filmmakers intentionally use 24fps for its characteristic motion blur and "film look." The best FPS depends on your content type: 24fps for cinema, 30fps for general content, 60fps for action, and 120fps for slow-motion. More frames does not automatically equal better — it equals smoother.