Diffraction Grating
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100 calls/day, no card, no spam. Built by one person, in public.
About Diff Grating
Diff Grating 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 Diff Grating
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.
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 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.
Frequently asked about Diff Grating
- Will Diff Grating change my original file?
- Never. Diff Grating only reads your input file and produces a new output file.
- Is Diff Grating really free?
- Yes — Diff Grating is free for unlimited personal use, with no account required and no watermark on the output.
- Does Diff Grating work on mobile?
- Yes, Diff Grating is fully responsive and tested on iOS Safari and Android Chrome.
- What browsers does Diff Grating support?
- Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
- Do I need to create an account to use Diff Grating?
- No. Diff Grating works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
