Soluzione
No-upload image optimizer for private workflows
Most image optimizers send your files to a remote server. ConV takes a different approach: the entire compression pipeline runs inside your browser using WebAssembly.
Your images never leave your device. No API, no cloud storage, no filenames in server logs.
Use it for sensitive client work, internal assets, or any workflow where you need to know exactly where your image data goes.
Vantaggi principali
- Zero-upload architecture — images never reach any server
- Supports JPEG, PNG, WebP, and AVIF input and output
- Automatic EXIF and GPS metadata removal on re-encode
- Batch processing with ZIP export
- Free tier with up to 20 images; unlimited with ConV Pro
Casi d'uso comuni
- Agencies processing client photos under confidentiality agreements
- Developers building web performance workflows without cloud dependencies
- Marketing teams handling unreleased product images
- Any team where image upload to third-party APIs is restricted
Come funziona
- 01
Open the ConV tool in your browser
- 02
Drop your images — any combination of JPEG, PNG, WebP, AVIF
- 03
Set output format and quality using built-in presets
- 04
Web Workers encode files in parallel using WASM codecs
- 05
Download a ZIP — all processing happened locally
Limitazioni e aspettative realistiche
Very large files (e.g. uncompressed 50 MP photos) may run slowly on low-spec devices. RAW photo formats are not supported.
Domande frequenti
What is a no-upload image optimizer?
A no-upload image optimizer processes images entirely in your browser. No files are sent to a server. ConV uses WebAssembly codecs that run locally.
How does ConV compare to Squoosh?
Both use browser-based WASM. ConV adds batch processing, ZIP export, preset management, and subscription-based team features.
Can I use ConV without creating an account?
Yes. The free tier works without an account. ConV Pro (subscription) adds unlimited images and additional features.
Does ConV work on mobile?
ConV runs in any modern browser. Mobile processing works but may be slower due to hardware constraints.
Soluzioni correlate
Convert images to WebP without uploading them
WebP is the de-facto standard for web images. Converting to it typically reduces file size by 25–35% compared to JPEG, improving page speed and Core Web Vitals without loss of quality.
Convert images to AVIF locally in your browser
AVIF is the next-generation image format backed by the Alliance for Open Media. It achieves 30–50% better compression than JPEG at comparable visual quality and often outperforms WebP.
GDPR-friendly image compression without image uploads
Sending employee or client images to a third-party cloud API creates data processing questions. ConV avoids this entirely: the compression pipeline runs in your browser — your images never reach ConV servers.
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