Video Transcoder
Convert videos between popular formats with control over codecs, resolution, and quality.
Coming soon
File Converters
ConverterFast, private file conversion tools powered by WebAssembly and browser APIs. Transcode videos, convert audio, compress images, extract archives, and convert documents locally without uploading your files.
Open SourcePrivacy FirstWASM PoweredNo UploadsNo ServersFree Forever
Last Updated: 04 September 2026
Free Professional Converter Tools
Convert, compress, and transform your files directly in your browser. Fast, private, and designed to keep your files on your device whenever possible.
Audio Converter
Convert audio files between popular formats while controlling quality and output settings.
Coming soon
Video → GIF
Convert video clips into lightweight animated GIFs with customizable output settings.
Coming soon
Image Converter
Convert images between popular formats while preserving quality and controlling output settings.
Coming soon
HEIC → JPG/PNG
Convert HEIC and HEIF images to widely supported JPG or PNG formats directly in your browser.
Coming soon
Compress Image
Reduce image file sizes while balancing compression, quality, and visual fidelity.
Coming soon
Strip EXIF
Remove EXIF and other embedded metadata from images to help protect your privacy.
Coming soon
SVG → Raster
Convert SVG vector graphics into raster image formats such as PNG and JPG.
Coming soon
Zip / Unzip
Create and extract ZIP archives directly in your browser without uploading your files.
Coming soon
JSON / CSV
Convert structured data between JSON and CSV formats for development and data workflows.
Coming soon
Batch Converter
Convert multiple files at once with a streamlined workflow for batch processing.
Coming soon
Guaranteed Local Privacy
Client SideFlagsDev is engineered to process your confidential documents directly in your browser sandbox, ensuring that your files never leave your device. We prioritize your privacy and security above all else.
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Features
Video Transcoder
Convert MP4, MOV, AVI, and MKV files locally using FFmpeg WebAssembly.
Audio Converter
Extract audio or convert between MP3, WAV, AAC, OGG, and FLAC formats.
Video to GIF
Trim clips and convert video segments into lightweight animated GIFs.
Image Format Converter
Instantly convert PNG, JPG, WebP, AVIF, and BMP images right in your browser.
HEIC to JPG/PNG
Convert iPhone HEIC photos to standard JPG or PNG files with zero quality loss.
Image Compressor
Reduce image file sizes with adjustable quality controls before downloading.
EXIF & Metadata Stripper
Remove sensitive location, camera info, and timestamp metadata from photos.
Vector to Raster
Rasterize SVG vector graphics into high-resolution PNG or JPG images.
Archive Zipper & Unzipper
Compress files into ZIP archives or extract contents without third-party software.
JSON & Data Formatter
Convert between JSON, CSV, YAML, and XML data structures instantly.
Batch Processing
Queue and convert multiple files simultaneously using multi-threaded web workers.
Local Media Export
Preview converted media and download generated outputs directly to your disk.
Frequently Asked Questions
Are my media files uploaded to any external server?
No. All video, audio, and image conversions happen directly in your browser using local CPU/GPU hardware.
Is there any file size limit for video or audio conversions?
Because operations run locally on your device, file size limits are only bound by your computer's RAM and available disk space.
How are video and audio processed in the browser?
We use FFmpeg compiled to WebAssembly (WASM), allowing your browser to execute native media processing code safely.
Does converting images compromise my privacy?
Not at all. Image operations use the native HTML5 Canvas API and WebAssembly decoders completely offline inside your browser.
Can I use these converter tools offline?
Yes. Once the web application loads, all core conversion engines work without an active internet connection.
Is the project open source?
Yes. The source code is publicly available so anyone can inspect, verify, or contribute to the repository.
Open Source
Open Source Project
This tool is open source, privacy-first, and built with the help of the community.
Contributors
Community Driven
Help Improve This Tool
This project is completely open source and built by developers from the community. Whether you've found a bug, have an idea for a new feature, or want to improve the codebase, every contribution is appreciated.