About Convert.FAST

Last updated: December 2025

We're building a network of tools that each do one thing well. Convert.FAST handles file conversion—images, documents, audio, and video-to-audio extraction across 110+ conversions. Drop your entire folder and we process files in parallel, not one at a time.

Less, but better

We deliberately support a focused set of conversions and obsess over getting them right. Every new format has to earn its place by passing strict checks for:

• Speed – stable p50/p95 times under realistic load
• Quality – no embarrassing artifacts or broken output
• Clarity – plain-English explanations of lossy vs lossless, metadata, and other trade-offs

If we can't hit our bar, we don't ship it. We'd rather be the best at the core formats you actually use than half-support a thousand obscure ones.

Right now we're focused on the 80% use case: everyday documents, images, and audio used in real work—reports, presentations, scans, photos, marketing assets, audiobooks, and podcasts. As we invest more in infrastructure, we're actively exploring higher-end workflows such as CAD/engineering formats, medical imaging, and full video transcoding, but we'll only add them when we can meet the same standards of speed, quality, and clarity.

Speed is architecture, not marketing

We run our own servers in the European Union and control the entire stack—no third-party processing APIs, no "black box" cloud services in the hot path. That lets us tune everything end-to-end:

• Pre-warmed worker pools
• Streaming uploads
• Batch-first queues and bounded concurrency

The result: bulk jobs complete in seconds, not minutes. Read how we achieve sub-second conversions →

"FAST" isn't just our name—it's a promise we hold ourselves to. We publish real p50 conversion times on every converter page so you can see exactly what to expect. More importantly, it keeps us honest: if a converter is slower than it should be, we know about it and prioritize improvements. How we measure performance →

Batch workflows, not afterthoughts

We built this for real bulk workloads—up to a thousand files at once. Even free users get 50-file batches with 3 parallel workers. Business accounts scale to 1000 files with 10 parallel workers.

Our fair scheduler ensures no single user monopolises the workers. Jobs are distributed by tier (Business, Pro, Free) and then round-robin within each tier. If you upload 100 files, you get your share of workers while leaving capacity for others.

Privacy, not promises

We treat your files as if they were our own internal docs:

• Encrypted in transit (TLS 1.3) and at rest (AES-256)
• Decrypted only in memory for the milliseconds to seconds needed to process
• Auto-deleted after 1 hour, or immediately by you after download
• EXIF metadata stripped by default for privacy and smaller files
• No third-party processing APIs; no AI training on your content

Full details on our Security and Data Retention pages.

The Tools.FAST Network

Convert.FAST is the first tool in the Tools.FAST Network—a set of focused utilities that each do one job, fast. One account gets you access to all of them, with shared credits across the network. More tools are coming, each built to the same standard of speed, quality, and privacy.