Kwebby's free online video tools cover seven common jobs: record a screen, grab frames, make a GIF, trim a clip, shrink a file, change its format and pull out the audio. Each tool runs in your browser, so your video stays on your device while you work. Below you will find what each tool does, how to pick one and how to use them responsibly.
Key Takeaways
- Kwebby's Video Tools hub lists seven free tools: Screen Recorder, Video Screenshot Generator, Video to GIF Converter, Video Trimmer, Video Compressor, Video Format Converter and Video to MP3 Converter.
- The tool pages say processing happens in your browser, nothing is uploaded and no account is needed.
- Five of the seven tools download a video processor of about 31 MB on first use, then cache it.
- Choose MP4 when you are unsure. MDN names MP4 and WebM as the most commonly used containers for video on the web.
- Trim first and compress second, so you never process footage you plan to discard.
- Use these tools only on video you own or have permission to use. The U.S. Copyright Office says no set percentage or length of a work is automatically safe to use.
What Are Online Video Tools?
Online video tools are web pages that capture, edit or convert video without installing software. They come in two designs. Upload tools send your file to a company's server and send back the result. Browser tools process the file on your own device.
The difference matters for privacy. Online Video Cutter, for example, states that it deletes uploaded files from its servers a few hours after you finish. Kwebby's seven tools use the second design. Five process video with WebAssembly, which MDN describes as bringing "near-native performance to the web". The Screen Recorder uses the browser's own capture features.
These are single-purpose utilities, not full editors. Editors such as Canva, Adobe Express and Kapwing offer timelines and templates for multi-clip projects. Kwebby's tools suit quick jobs before or after an edit.
The Seven Kwebby Video Tools
Screen Recorder
Kwebby's Screen Recorder records a screen, window or browser tab, with optional microphone, system audio and a webcam overlay. Downloads carry no watermark. Recordings save as WebM, with an MP4 conversion offered after you stop. Chrome and Edge are fully supported, Firefox and Safari only partly. The Screen Capture API lets you pick what to share, so nothing records without your say-so.
Video Screenshot Generator
Kwebby's Video Screenshot Generator reads a video's duration, resolution and size, then builds a PNG grid of evenly spaced frames with timestamps. Presets run from 2x2 to 4x4 and custom grids reach 6x6. You can also save a single frame. The page lists a small "by kwebby.com" watermark on its output.
Video to GIF Converter
Kwebby's Video to GIF Converter turns a clip into an animated GIF. Set the start and end on a timeline, add optional meme text, choose a width from 100 to 1920 pixels and 5 to 30 frames per second. For small files the page recommends 3 to 5 seconds, 320 or 480 pixels and 10 frames per second.
Video Trimmer
Kwebby's Video Trimmer cuts a clip between a start and end time. Fast Cut copies the stream without re-encoding, so it finishes almost instantly but may begin a few frames early at the nearest keyframe. Precise Cut re-encodes for frame-accurate edges and takes longer.
Video Compressor
Kwebby's Video Compressor shrinks a file with Light, Medium and Heavy presets, optional downscaling to 720p, 480p or 360p and a choice of audio bitrate. Output is MP4 with H.264 video and AAC audio. The page estimates savings of 30 to 50 percent for Light, 50 to 70 for Medium and 70 to 85 for Heavy, varying by source.
Video Format Converter
Kwebby's Video Format Converter converts between MP4, WebM, MOV, AVI and MKV at High, Medium or Low quality. WebM output uses VP9 video with Opus audio, and the other formats use H.264 with AAC.
Video to MP3 Converter
Kwebby's Video to MP3 Converter extracts the audio track as MP3, AAC, WAV or OGG at 320k, 192k or 128k and plays a preview before you download. Use it on your own recordings, such as a webinar you hosted, and read the responsible use section below before extracting audio from anyone else's video.
How to Choose the Right Video Tool
Match the job to the tool.
- You need to capture something on screen: Screen Recorder.
- You need still images from a video: Video Screenshot Generator.
- You need a short looping clip: Video to GIF Converter.
- You need to cut the start or end of a clip: Video Trimmer.
- The file is too big to send or upload: Video Compressor.
- A device or platform rejects the file type: Video Format Converter.
- You need only the sound: Video to MP3 Converter.
A common sequence for a long screen recording is record, trim, then compress at the Medium preset and 720p. For anything else, browse all Kwebby tools. Stills from a video can be cropped with the Image Crop Tool, shrunk with the Image Optimizer or touched up in the Online Image Editor, all in the Image Tools hub. After embedding a video, check the page with the Page Size Checker.
How Browser-Based Processing Works
- First run: five tools download a processor of about 31 MB, which the browser caches.
- Speed: encoding is CPU-intensive, so shorter videos and lower resolutions finish faster.
- Limits: the tool pages state no file size limits, but your own device does the work. The Video to MP3 page warns that mobile browsers may run short of memory on large files, so use a desktop browser for long recordings.
- Privacy: the pages say no video data is sent to a server. The result lives in browser memory until you download it or close the page, so save it before you leave.
Which Video Format Should You Choose?
MDN's guide to media containers says the most commonly used containers on the web are probably MP4 and WebM. MDN adds that QuickTime (MOV) is no longer widely used online and that Apple now generally uses MP4. Use MP4 to share, WebM for a small file on a web page, and MOV, AVI or MKV only when a workflow asks for them.
Use Video Tools Responsibly
The U.S. Copyright Office describes fair use as a doctrine that permits unlicensed use of copyrighted works in certain circumstances. It also states that no formula guarantees a set percentage, amount or number of words or lines can be used without permission. A short clip is not automatically safe, and this is general information, not legal advice.
- Extract audio, make GIFs or capture frames only from footage you own or have permission to use.
- Read the terms of the platform that hosts a video before you copy from it.
- Tell participants before you record a meeting or call, and keep other people's private information off the screen.
Frequently Asked Questions (FAQs)
What are the best free online video tools?
It depends on the job. Editors such as Canva, Adobe Express and Kapwing suit multi-clip projects. Kwebby's seven free tools suit single tasks: record, capture frames, make a GIF, trim, compress, convert and extract audio.
Do Kwebby's video tools upload my video?
No, according to the tool pages. Processing runs in your browser, so your file stays on your device. Five tools download a processor of about 31 MB the first time you use them.
Is there a file size limit?
The tool pages state no file size limits. In practice your device's memory and processor set the ceiling, and the Video to MP3 page warns that mobile browsers may struggle with large files. Try a desktop browser for long videos.
How do I make a video smaller to email or upload?
Trim off the parts you do not need, then run the Video Compressor. Choose Medium for most files, or Heavy when size matters more than quality. The page estimates 50 to 70 percent savings for Medium, though results vary.
Can I extract audio from any video?
The converter accepts MP4, WebM, MOV, AVI, MKV and other common formats, but that does not settle the legal question. Extract audio only from video you own or have permission to use, and follow the host platform's terms.
Final Thoughts
Kwebby's video tools handle seven small jobs without an upload or an account, and each page tells you what the tool does before you start. Pick the one that matches your task, use it on video you have the right to use and download your result before you close the tab. Start with the Video Trimmer or the Video Compressor on a file you already have. If you want video features built into your own site or app, Kwebby's development services can build them.