Nd Filter Calc
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100 calls/day, no card, no spam. Built by one person, in public.
About ND Filter
Working with this task no longer requires installing heavy desktop software — ND Filter runs entirely in your browser, instantly. 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. Like everything else in the utility collection, it is free, ad-light, and works on mobile as well as desktop.
When you'd reach for ND Filter
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 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 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 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 ND Filter
- Are my files uploaded to a server when I use ND Filter?
- ND Filter processes everything in your browser using local APIs. Your files never leave your device.
- What browsers does ND Filter support?
- Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
- Is ND Filter really free?
- Yes — ND Filter is free for unlimited personal use, with no account required and no watermark on the output.
- Does ND Filter work on mobile?
- Yes, ND Filter is fully responsive and tested on iOS Safari and Android Chrome.
- Can I use ND Filter commercially?
- Yes. The output of ND Filter belongs entirely to you, with no licensing restrictions.