Space Diagonal
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100 calls/day, no card, no spam. Built by one person, in public.
About Space Diag
Space Diag was built for the moment you just need to handle this task and move on — no signup, no upload to a third-party server. Everything happens client-side, which means your files and data never leave your machine. The interface is intentionally minimal so you can focus on the task instead of learning the tool. It pairs naturally with the other utility utilities here when you need to chain a quick workflow.
When you'd reach for Space Diag
You need to handle a one-off task right before a meeting and don't have time to install anything.
Anyone working remotely on a borrowed or restricted machine.
Open the page, get the result, paste it into your doc — under a minute.
You're on a public or shared machine and don't want to leave traces of what you're working on.
Travelers, contractors, anyone working from a friend's computer.
Nothing is uploaded, nothing persists if you're not signed in.
You're cleaning up a folder of files that accumulated over a project and need to standardize them.
Designers, writers, and developers wrapping up deliverables.
Drop each file in, copy the output, move on.
You're hitting the daily limit of a paid SaaS and need a backup option for a single quick job.
Marketers and ops people whose primary tool is metered.
Stay productive without burning credits.
Frequently asked about Space Diag
- Is Space Diag really free?
- Yes — Space Diag is free for unlimited personal use, with no account required and no watermark on the output.
- Can I use Space Diag commercially?
- Yes. The output of Space Diag belongs entirely to you, with no licensing restrictions.
- Does Space Diag work on mobile?
- Yes, Space Diag is fully responsive and tested on iOS Safari and Android Chrome.
- What browsers does Space Diag support?
- Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
- Are my files uploaded to a server when I use Space Diag?
- Space Diag processes everything in your browser using local APIs. Your files never leave your device.
