Room Lighting Calc

Share:Copied!
Was this tool helpful?

Get a free API key + new tools as they ship

100 calls/day, no card, no spam. Built by one person, in public.

About Room Light

Room Light solves a specific problem that comes up daily for anyone dealing with this task: doing it once, fast, without an account. Built to be the kind of tool you bookmark and use weekly: no surprises between visits, no degraded free tier, and a UI that gets out of the way. It pairs naturally with the other utility utilities here when you need to chain a quick workflow.

When you'd reach for Room Light

  • 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 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.

Frequently asked about Room Light

Does Room Light work on mobile?
Yes, Room Light is fully responsive and tested on iOS Safari and Android Chrome.
Are my files uploaded to a server when I use Room Light?
Room Light processes everything in your browser using local APIs. Your files never leave your device.
What browsers does Room Light support?
Every modern browser released in the last three years: Chrome, Firefox, Safari, Edge, Brave, Opera.
Can I use Room Light commercially?
Yes. The output of Room Light belongs entirely to you, with no licensing restrictions.
Do I need to create an account to use Room Light?
No. Room Light works without any signup. We only ask for an email if you decide to subscribe to a paid plan.