File Converters

Convert files between different formats with ease and precision.

10 tools available

Image Converter

Popular

Convert images between different formats like PNG to JPG, WebP, and more.

Updated 3 days ago

Video Converter

Popular

Convert videos between MP4, WebM, AVI, MOV, MKV and more formats with quality control.

Updated today

Audio Converter

Popular

Convert audio files between MP3, WAV, FLAC, AAC, OGG and other formats with bitrate control.

Updated today

Video to Audio

Popular

Extract audio from video files in MP4, AVI, MOV, MKV, WebM and more. Save as WebM or MP4 audio.

Updated today

Image Resizer

Popular

Resize images to exact pixel dimensions or percentages while keeping aspect ratio. Runs fully in your browser.

Updated today

Image Compressor

Popular

Compress JPG, PNG, and WebP images to reduce file size with adjustable quality — no uploads.

Updated today

Image Cropper

Crop images online with freeform or fixed aspect ratios and instant download.

Updated today

Image to Base64

Convert images to Base64 data URIs for embedding in HTML, CSS, or JSON — and decode Base64 back to images.

Updated today

Favicon Generator

Create favicons in all standard sizes (16x16 to 512x512) from any image, with ICO and PNG output.

Updated today

SVG to PNG Converter

Convert SVG vector graphics to PNG images at any resolution with transparent background support.

Updated today

About our file converters

File conversion is one of the most common online tasks — and one of the riskiest, because most converter sites upload your files to their servers. ToolsGuru's file converters take a different approach: images, videos, and audio are processed directly in your browser using Canvas, WebAssembly, and modern media APIs. Your files never leave your device, there is nothing to delete afterwards, and there is no upload wait time.

The image suite covers format conversion (PNG, JPG, WebP, GIF, BMP, HEIC, AVIF), resizing to exact pixels or percentages, compression with a live quality preview, cropping with aspect-ratio presets, Base64 encoding for developers, favicon generation in every standard size, and SVG-to-PNG rasterization at any resolution.

For media, the video converter handles MP4, WebM, AVI, MOV, and MKV; the audio converter moves between MP3, WAV, FLAC, AAC, and OGG with bitrate control; and the video-to-audio extractor pulls soundtracks out of video files. Because everything is local, even large files convert without upload time — your only limit is your device's memory.

Why choose ToolsGuru

Files never uploaded

Conversion happens on your device. Private photos, contracts, and recordings stay private.

No file size games

No artificial size caps or 'premium' unlocks — your hardware is the only limit.

Batch friendly

Convert multiple images at once and download results individually or together.

Quality control

Adjust compression, resolution, and bitrate with instant before/after feedback.

Frequently asked questions

Are my files uploaded to a server?

No. All converters on ToolsGuru process files locally in your browser. If you open your browser's network inspector during a conversion you'll see no file data being transmitted. This is fundamentally more private than traditional converter websites.

What is the maximum file size?

There is no fixed limit — capacity depends on your device's available memory. Images of any practical size convert instantly; very large videos (several GB) may be constrained by browser memory on older devices.

Why convert images to WebP?

WebP typically produces files 25–35% smaller than JPEG at the same visual quality, which makes pages load faster and improves Core Web Vitals. All modern browsers support it, and our converter lets you compare quality before downloading.

Does conversion reduce quality?

Only if you choose lossy settings. Converting to lossless formats (PNG, FLAC, WAV) preserves every pixel or sample. For lossy formats (JPG, WebP, MP3), you control the quality slider and can preview the result before saving.