50-gallon tank recommended

Peak hour demand: ~48 gallons (182 liters)

First hour rating needed: 58 gallons

Based on 12 gallons per person during peak hour. Tankless units sized differently.

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About Water Heater

Water Heater was built for the moment you just need to handle this task and move on — no signup, no upload to a third-party server. The goal was to keep the path from "open the page" to "get the result" as short as possible. No mandatory account, no cookie wall, no upsell at every step. It pairs naturally with the other utility utilities here when you need to chain a quick workflow.

When you'd reach for Water Heater

  • 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 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 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 Water Heater

Do I need to create an account to use Water Heater?
No. Water Heater works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
Are my files uploaded to a server when I use Water Heater?
Water Heater processes everything in your browser using local APIs. Your files never leave your device.
Is Water Heater really free?
Yes — Water Heater is free for unlimited personal use, with no account required and no watermark on the output.
Does Water Heater work on mobile?
Yes, Water Heater is fully responsive and tested on iOS Safari and Android Chrome.
Will Water Heater change my original file?
Never. Water Heater only reads your input file and produces a new output file.

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