Heat Exchanger
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100 calls/day, no card, no spam. Built by one person, in public.
About Heat Exch
When you need this task done in seconds, Heat Exch delivers a clean, focused interface without the friction of a generic tool. 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. 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 Heat Exch
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.
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 Heat Exch
- Is Heat Exch really free?
- Yes — Heat Exch is free for unlimited personal use, with no account required and no watermark on the output.
- Will Heat Exch change my original file?
- Never. Heat Exch only reads your input file and produces a new output file.
- Do I need to create an account to use Heat Exch?
- No. Heat Exch works without any signup. We only ask for an email if you decide to subscribe to a paid plan.
- Does Heat Exch work on mobile?
- Yes, Heat Exch is fully responsive and tested on iOS Safari and Android Chrome.
- Can I use Heat Exch commercially?
- Yes. The output of Heat Exch belongs entirely to you, with no licensing restrictions.
