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About Brightness
When you need developer and design work done in seconds, Brightness delivers a clean, focused interface without the friction of a generic tool. Processing runs locally in your browser using modern Web APIs. Nothing is uploaded, nothing is logged, and there is no quota to worry about for casual use. It is one of about a hundred developer tools that share the same philosophy: do one thing, do it well, get out of your way.
When you'd reach for Brightness
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.
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.
Frequently asked about Brightness
- What browsers does Brightness 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 Brightness?
- Brightness processes everything in your browser using local APIs. Your files never leave your device.
- Do I need to create an account to use Brightness?
- No. Brightness works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
- Will Brightness change my original file?
- Never. Brightness only reads your input file and produces a new output file.
- Does Brightness work on mobile?
- Yes, Brightness is fully responsive and tested on iOS Safari and Android Chrome.