How to Convert Osu! Replay File (.OSR) to MP4?

An OSR file is a game replay file generated by the osu!, a free-to-play rhythm game where players click circular objects in time with music. These clicks are scored based on their timing and accuracy. At the end of a song in osu!, players have the option to save a replay of their playthrough. This creates an OSR file which saves details of the gameplay sessions like the player's name, score, number of hits and misses, the date played, and ranking on the leaderboard.

OSR files allow players to rewatch and share their replays with others. However, to view an OSR replay properly, the recipient must have the corresponding beatmap file in the "Songs" folder and have osu! game installed. OSR files are not standalone, and can only be viewed within the osu! game engine. Therefore, they are not compatible with most media players and platforms. Many osu! players wonder whether it's possible to convert their OSR playthrough into MP4, which can be easily shared and viewed. The answer is YES, keep reading!

There are two primary methods for converting OSR files to MP4: the osr2mp4 app and the free online tool o!rdr. Let's take a closer look at each method and discuss their pros and cons.

Method 1: Using osr2mp4 App (Still Work, But No Longer Maintained)

The osr2mp4 app is a Windows-based application designed to convert osu! replays to MP4 videos in a few clicks. Though the final version of this app stops at v0.3 and has not been updated since 2020, it still works during my hands-on test. Keep in mind, there is no guarantee of success that osr2mp4 app is compatible with newer operating systems and game updates. If you want to give it a try, follow these steps:

Step 1. Download the osr2mp4 RAR file based on your system type from the GitHub repository. For a very old PC, choose the legacy version.

Step 2. Unzip and extract all files, then run the "osr2mp4.exe" executable file.

Step 3. For the first time use, you're prompted to choose your osu! path and output folder. If not, just open "OPTIONS" window to change them. By default, it will save the output file in .avi format. You need to change the video format manually after the conversion. Alternatively, you can directly change the file extension from .avi to .mp4 under "Output name" section.

Step 4. Click "SELECT .OSR" button to locate your OSR file that you want to convert.

Step 5. It will automatically search for the beatmap. So most of the time you just need to select the replay file.

Step 6. Finally, click "START" button to initiate the conversion process.

Note. osr2mp4 app only works for standard game mode. It doesn't convert OSR files generated from the other 3 game modes: taiko, CTB, and mania.

Method 2: Using o!rdr Online Converter

o!rdr (short for osu!render or osu!renderer) is a free online tool that can convert osu! replays to MP4 videos without the need of downloading any software. Here is how to use o!rdr to convert OSR file to MP4 online:

Step 1. Visit o!rdr via THIS LINK.

Step 2. Click "Pick a replay" to add an OSR file.

Step 3. Enter your username and choose a preferred resolution. You're allowed to link your osu! account to enable 1080p option or donate to o!rdr for unlocking 4K option.

Step 4. Customize Gameplay settings, Skin settings (required field), Cursor settings, Objects settings, Other settings, and Video settings.

Step 5. When everything is ready, click "Send render job" button. Then your file will be uploaded and processed.

Step 6. After done, it will give you a video URL to play and download the MP4 file.

Note. Like osr2mp4 app, o!rdr does not support mania/CTB/taiko game modes either. The conversion speed and quality may vary depending on the modified settings, the server load, and your Internet connection. You may also see an error message that says "Too many requests, please try again later." or run into the unexpected long downtimes.

Given the limitations of the aforementioned methods, the most reliable way is to record your playthrough while playing the OSR file in the osu! game engine.

This can be done using WonderFox HD Video Converter Factory Pro, a user-friendly video processor that offers a built-in Recorder module with four recording modes, allowing you to record, edit, and convert OSR to MP4 with all game modes supported. The intuitive interface makes it easy for anyone to use.

Q1: Can I play or view OSR files on my computer without osu!?

A: No, OSR files can only be played within the osu! game. You need to have osu! installed along with the specific beatmap the replay is tied to for proper playback. OSR files are not standalone and will not play in most standard media players.

Q2: Can I share my OSR files with friends who don't have osu!?

A: Yes, you can share OSR files with friends, but they will need to have osu! installed and the corresponding beatmap in their "Songs" folder to view the replay.

Q3: Are there any alternatives for recording OSR files?

A: Yes, there are several alternative screen recording tools available, such as OBS Studio, Bandicam, and Camtasia. However, WonderFox HD Video Converter Factory Pro is recommended for its ease of use and versatile recording options.

Q4: Can I convert OSR replays to other video formats besides MP4?

A: While this guide focuses on converting OSR files to MP4, you can also use screen recording software to capture your osu! replays in other video formats supported by the recording tool you choose.

OSR replay files allow osu! players to save and share recordings of their gameplay performances. However, OSR files are not standalone and require the beatmap they are tied to in order to be viewed within the osu! game engine. Converting OSR files into MP4 can be challenging, especially if you are not familiar with the technical details. However, with the methods and tools we have introduced in this article, you can easily get the job done and share your highlights with the world.