Zero Server Uploads • 100% In-Browser

Free Online Media Tools, No Uploads

Professional-grade media conversion and editing utilities powered by WebAssembly and WebCodecs. Your files never leave your device through our code.

Explore All Converters How Local Processing Works

Local Browser Media Utilities

Select a tool to begin processing immediately on your hardware with complete privacy.

Video & Audio

Extract Audio from Video

Lossless AAC direct stream-copy and high-fidelity WAV or MP3 audio extraction in your browser.

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AI Vision

Remove Image Backgrounds

Automatic on-device neural background removal with refine brush and full-resolution export.

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Image Editing

Photo Frame Maker

Procedural decorative borders, polaroid effects, film strips, and custom aspect ratios.

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Vector Graphics

Image to Vector Tracing

Convert raster JPG and PNG images into scalable SVG, EPS PostScript, and vector PDF paths.

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Converters

Universal Image Converter

Fast conversion between WebP, PNG, JPG, BMP, ICO, and PDF with metadata stripping.

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Optimization

Image Compressor & Resizer

Compress images to a target KB size using binary search quality optimization.

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PDF Tools

Merge PDF Documents

Combine multiple PDF files in client-side memory with easy drag-and-drop page reordering.

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PDF Tools

Split PDF Pages

Split PDFs by custom page ranges or extract individual pages into standalone files.

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Why Choose In-Browser Processing?

Complete Data Sovereignty

Traditional online converters upload your personal photos and sensitive documents to remote servers. JR LocalLab executes all operations in browser memory via sandboxed Web Workers.

Instant Hardware Execution

Skip slow network upload queues. Large multi-hundred-megabyte video and image files are read in small chunks from your local storage and converted instantaneously by your CPU and GPU.

Verifiable in Network Tab

We do not ask for blind trust. Press F12 in your browser, inspect the Network tab during conversion, and confirm for yourself that zero outbound file payload requests are transmitted.