How to Record Web Game Videos

In fast-paced web games (such as "Agar.io"), every frame of operation may determine the outcome. Whether it is making a strategy video, live broadcast sharing, or recording highlights, a professional screen recording tool is essential. LosslessRec is optimized for web games and provides the following core advantages:

• Lossless quality recording

  Supports 60FPS recording, fully retains game details (such as the cell division special effects of Agar.io), zero compression of image quality, far exceeding the default settings of traditional tools such as Bandicam.

• Ultra-low resource usage

  Using intelligent encoding technology, CPU usage is reduced by 40%, and there is no lag while playing and recording, solving the common frame drop problem of web games.

• One-click operation

  Automatically adapt to the browser window (Chrome/Firefox, etc.), and you can also customize the recording window area. No need for complex parameter debugging, novices can get started in seconds, which is more flexible than Xbox Game Bar.

• Multi-scenario adaptation

  Live streaming: Directly export YouTube/Twitch compatible formats, professional optimization of color and clarity.

  Strategy production: supports local recording and audio separation to facilitate post-editing.

• Free trial + permanent license

  Free trial version is provided. After experiencing the recording effect, you can unlock all functions for only $19.99 (current event saves up to 40%).

Capture Every Second for Agar.io with LosslessRec

With over 113 million downloads and counting, Agar.io remains a global phenomenon since its 2015 launch. Whether you're streaming on Twitch, creating tutorials, or sharing clutch moments, LosslessRec delivers zero-quality-loss recording at 60FPS—ensuring every cell split and strategy play shines in crisp detail.

No technical skills are required, just one click to get started. Preserve every pixel and every detail of your game, follow the steps below to get started right away.

Step 1 Preparation

Click the "Free Download" button below to download the free trial.

Step 2 Open the recording program and set the parameters

• Launch LosslessRec and in the main interface, you can see various recording options.



• Select the recording mode:

  If you only want to record a certain area of ​​the game, you can select the "Custom Area" mode and drag the mouse to select the desired area. If you want to record the entire screen, please click "Full Screen".

  Of course, you can also automatically track the game process window. Just click "Other Modes" on the main interface and then select "Program Window". The following is an example of this option:



Select the browser process window where the Agar.io game is located.



• Audio settings: If you want to record game sounds, click the "Sound" setting item and set your system sounds..



• Video parameter adjustment: In the settings, you can adjust the resolution, frame rate, bitrate, and other parameters of the video as needed. In general, keeping the default settings will suffice most needs; If you have higher requirements for video quality, you can increase the resolution and frame rate appropriately, but it should be noted that too high parameters may increase the file size.

Step 3 Start recording

Once you've set up the above, click the "Rec" button, and LosslessRec will have a short countdown prompt, and then start recording.

Step 4 Actions during recording

If you need to pause or resume recording while recording, you can tap the corresponding button in the recording control bar on the screen at any time.

If you find that the recording parameters are incorrect, such as the audio is not recording normally or the recording area is inaccurate, you can pause the recording, readjust the parameters, and resume recording.

Step 5 End recording and save files

Click the "Stop Recording" button, and LosslessRec will automatically save the recorded video to the folder you specified. You can find the recorded video file in the save path and play, edit, or share it.

Step 6 Edit Video

You can edit the video by adding text, crop Video, and more.

Finally, click "Export" to export the edited video.

Why choose LosslessRec?

Recording web games with LosslessRec perfectly solves user pain points:

• Pain point 1: Players complain that the recorded video is too large and difficult to store.

  → Intelligent compression technology: Reduce file size by 30% while maintaining lossless image quality.

• Pain point 2: Frequent switching of web game windows causes recording interruptions.

  → "Program Window" function: Automatically lock the "Agar.io" browser tab to avoid recording other content by mistake.

What Can LosslessRec Help

Gamers, capture your most epic in-game wins in high-definition, with adjustable frame rates for super-clear fast-paced action. Share these highlights on your favorite platforms to show off your skills.

Students and professionals, no more missing crucial info in online lectures or business meetings. Record full-screen sessions and review them at your own pace.

Content creators, it's your secret weapon. Whether making tutorials, software demos, or vlogs, record specific windows, areas, or the whole screen, with lossless-quality audio.

Preserve live webinars, virtual events, and more for future use. Our screen recorder is beginner-friendly, with a simple interface. Just a few clicks, and you're recording. It's reliable, optimized for smooth running without lag.

When You Need LosslessRec

• Gamers: Record epic gameplay, like a pro-level boss fight or a perfect no-hit run.
• Students: Capture online lectures for later review, especially complex math or science courses.
• Content Creators: Make software tutorials, showing step-by-step operations for viewers.
• Remote Workers: Record important virtual meetings when unable to take detailed notes on-the-fly.
• Event Enthusiasts: Save live webinars by industry experts to revisit key insights.
• Hobbyists: Document DIY project processes, from building a model to a home-made recipe.
• E-commerce Sellers: Create product demonstration videos, highlighting features and usage for potential customers.
• Customer Service Agents: Record troubleshooting sessions to share solutions with colleagues or for self-improvement.
• Training Instructors: Record pre-recorded training materials for employees or students to access at any time.
• ...

Precautions

System resources: Long-term lossless-quality video recording may occupy a lot of system resources, it is recommended to close unnecessary applications before recording to ensure that the computer can run stably and avoid affecting the recording effect.

Storage: Check your computer's remaining storage space in advance to make sure you have enough space to save the recorded video file. If you're running out of storage, you can clean up the disk or choose to save the video to an external storage device.

Record Game Video FAQs

1. How to avoid game lag or frame drops when recording?

Reduce the quality settings: turn off "HD special effects" or lower the resolution in "Agar.io".

Close background programs: end unnecessary browser tabs or applications to free up CPU resources.

Use LosslessRec to record game videos: its encoding technology can reduce resource usage by 40%, has no impact on the game during recording, and supports 60FPS recording with lossless image quality.

2. How to record game sound and microphone sound at the same time?

Follow the instructions in step 2 of the article to open and set up system sound and microphone in LosslessRec.

3. What to do if a black screen appears during recording/cannot capture the browser screen?

Check browser permissions: Make sure the screen recording software has "Screen Recording" permissions (Windows Settings → Privacy → Screen Recording).

Use "Program Window" mode: Set "Agar.io" as a separate window and select "Program Window" instead of full-screen recording.

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