BuzzKit
Every video, audio, image and PDF tool, without the upload.
Free tools to convert, compress, trim and merge files. They run in your browser tab, so nothing is uploaded and nothing waits in a queue.
Everything runs in your browser tab with WebAssembly, Canvas, pdf-lib, pdf.js and gif.js.
Jump to a tool
Every tool, one click away. Hover a category card above to highlight its column.
Video Tools
Image Tools
PDF Tools
All 28 free browser-based tools
Grouped by file type. Pick a tool below or use the search bar at the top.
Video Tools
7 toolsVideo Converter
Convert video to MP4, WebM, AVI or MKV, right in your browser.
Video Compressor
Shrink file size while keeping visual quality intact.
Video Trimmer
Cut a clip down to the exact moment you need.
Video Merger
Join multiple clips into a single video file.
Video to GIF Converter
Turn any clip into a looping, shareable GIF.
Video Rotator
Fix sideways or upside-down footage in one click.
Mute Video (Remove Audio)
Strip the audio track and keep the picture only.
Audio Tools
5 toolsAudio Converter
Convert between MP3, WAV, OGG and AAC.
Audio Compressor
Reduce bitrate and file size without a re-record.
Audio Trimmer
Cut the exact section of a track you want to keep.
Audio Merger
Combine several audio files into one.
Volume Booster
Raise a quiet recording to a usable listening level.
Image Tools
12 toolsImage Converter
Convert between JPG, PNG and WebP instantly.
Image Compressor
Shrink photo file size for web and email.
Image Background Remover
Cut a subject out from a flat or simple background.
Image Resizer
Resize photos to exact pixel dimensions.
Image Cropper
Crop to a custom box or a common aspect ratio.
Image Rotator & Flip
Rotate or mirror an image in any direction.
Image to PDF Converter
Turn one or more photos into a single PDF.
Grayscale Image Converter
Convert a color photo to black and white.
Image Color Picker
Click any pixel to read its exact hex and RGB value.
Image Filter Editor
Adjust brightness, contrast and saturation live.
GIF Maker
Combine a batch of images into an animated GIF.
Favicon Generator
Generate the standard favicon PNG sizes from one image.
From file in to file out, all in one tab
Every tool follows the same three steps, so once you have used one you know them all.
Drop in a file
Pick a video, audio, image or PDF from your device. The browser reads it directly, so there is no upload step.
It runs in your tab
WebAssembly, the Canvas API, pdf-lib, pdf.js and gif.js do the work on your own hardware, not on a remote server.
Download the result
Save the new file straight from the page. No account, no signup and no waiting in a queue.
Do not take our word for it
Privacy claims are easy to make. So we audited our own code, and wrote down how you can test any converter yourself.
We audited the code of all 28 tools
A search of every tool page for upload mechanisms, including the weak spots we found along the way.
Read the audit → 5-minute testTest any site yourself
Use your browser's developer tools to see whether a converter sends your file to a server.
Run the test → RisksWhy free converters worry us
What can go wrong when you hand a file to a converter you know nothing about.
Read more →Frequently asked questions
Is BuzzKit really free to use?
Yes. All 28 tools are free, with no account, subscription, or API key required. There is no hidden paid tier for standard use.
Do my files get uploaded to a server?
No. Every tool runs locally in your browser tab using WebAssembly (ffmpeg.wasm), the Canvas API, or the open-source libraries pdf-lib, pdf.js and gif.js, depending on the tool. Your file never leaves your device, which also means there is nothing stored on our end to worry about.
Is there a file size limit?
There is no artificial limit set by BuzzKit. Since processing happens entirely in your browser, the practical limit is your own device's memory and processing power. Very large files, especially video, may run slowly on lower-powered devices.
How accurate is the background remover?
It uses a real, explained image-processing technique rather than generative AI, and works best on simple or flat backgrounds. A busy or complex background may still show through. See the tool page for specifics.
Do I need to create an account?
No. Open any tool and start using it immediately. There is no sign-up wall.
Which browsers are supported?
Any modern browser with WebAssembly support, including current versions of Chrome, Firefox, Edge, and Safari.
Ready when you are
Pick a tool and use it right now. No account, no upload and nothing to install.