The best free video recorder depends on your specific needs, such as the platform you're using, the features you require, and your budget. While there are many  free video recorder available, here are some of the top options available:

Online Video Recorders:

1. Clipy (Fully Free)

• Record screen
• Easy sharing via links
• Save recordings to Microsoft One.
• Price: Free
• Website: clipy.online

2. Loom (Windows, macOS, Chrome Extension)

• Free for basic use with a 5-minute recording limit.
• Website: https://www.loom.com

3. ScreenPal (formerly Screencast-O-Matic)

• Free version with a 15-minute recording limit and watermark.
• Website: https://www.screenpal.com

For Windows and macOS:

1. OBS Studio (Open Broadcaster Software)

• Best for: Free, open-source, and highly customizable.
• Features: Supports live streaming, multi-source recording, and advanced settings for professionals.
• Platform: Windows, macOS, Linux.
• Price: Free.

2. Camtasia

• Best for: Content creators and educators.
• Features: Screen recording, video editing, annotations, and effects.
• Platform: Windows, macOS.
• Price: Paid (one-time purchase).

3. Snagit

• Best for: Quick screen captures and simple recordings.
• Features: Easy-to-use, includes basic editing tools, and supports GIF creation.
• Platform: Windows, macOS.
• Price: Paid (one-time purchase).

4. ScreenFlow

• Best for: Mac users looking for professional-grade recording and editing.
• Features: Intuitive interface, multi-track editing, and animations.
• Platform: macOS.
• Price: Paid.

5. Movavi Screen Recorder

• Best for: Beginners and casual users.
• Features: Simple interface, scheduled recording, and basic editing tools.
• Platform: Windows, macOS.
• Price: Paid (free trial available).

For Gamers:

1. NVIDIA ShadowPlay (GeForce Experience)

• Best for: Gamers with NVIDIA GPUs.
• Features: High-performance recording with minimal impact on gameplay.
• Platform: Windows.
• Price: Free.

2. AMD ReLive

• Best for: Gamers with AMD GPUs.
• Features: Lightweight, supports instant replay, and streaming.
• Platform: Windows.
• Price: Free.

3. Bandicam

• Best for: High-quality game recording.
• Features: Low system resource usage, 4K recording, and real-time drawing.
• Platform: Windows.
• Price: Paid (free trial available).

For Mobile Devices:

1. AZ Screen Recorder (Android)

• Best for: Android users.
• Features: No root required, supports internal audio, and live streaming.
• Platform: Android.
• Price: Free (with in-app purchases).

2. iOS Screen Recording (Built-in)

• Best for: iPhone/iPad users.
• Features: Native screen recording with microphone audio.
• Platform: iOS.
• Price: Free.

3. DU Recorder (Android/iOS)

• Best for: Mobile screen recording with editing tools.
• Features: Live streaming, video editing, and no time limits.
• Platform: Android, iOS.
• Price: Free (with in-app purchases).

For Advanced Users:

1. Camtasia

• Best for: Professional-grade recording and editing.
• Features: Advanced editing tools, animations, and effects.
• Platform: Windows, macOS.
• Price: Paid.

2. Adobe Captivate

• Best for: E-learning and interactive content.
• Features: Screen recording, quizzes, and simulations.
• Platform: Windows, macOS.
• Price: Paid.

Free Downloaded Software Options:

1. OBS Studio

• Best for: Free and open-source.
• Features: Highly customizable and supports live streaming.
• Platform: Windows, macOS, Linux.
• Price: Free.

2. Windows Game Bar (Built-in)

• Best for: Casual Windows users.
• Features: Simple screen recording for games and apps.
• Platform: Windows.
• Price: Free.

3. QuickTime Player (Built-in)

• Best for: Basic screen recording on macOS.
• Features: Simple and easy to use.
• Platform: macOS.
• Price: Free.

In Short:

• Best Free Online: Clipy
• Best Free Downloaded Software Option: OBS Studio.
• Best for Gamers: NVIDIA ShadowPlay or AMD ReLive.
• Best for Professionals: Camtasia or ScreenFlow.
• Best for Mobile: AZ Screen Recorder (Android) or iOS Built-in Recorder.

Conclusion

These are few great options as a video recorder. However, keep in mind that free versions may have limitations such as watermarks, recording time limits, or lower quality compared to their paid counterparts, except Clipy and OBS.