TiefWise

TiefWise

A fast, local-first API client — no cloud, no accounts

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TiefWise is a local-first API client designed for secure API testing in enterprise environments. It runs entirely on the developer’s machine, requires no accounts, and does not sync data to the cloud. Collections export to git-friendly folders for controlled collaboration and review. Key features include fast startup (<2s), export-time secret warnings, request preview, response comparison, and reliable cURL export. Free, macOS & Windows. Free, macOS & Windows.
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Free
Launch tags:API•Developer Tools•Security
Launch Team / Built With
Framer
Framer
Launch websites with enterprise needs at startup speeds.
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What do you think? …

Neeta Gundala
Maker
📌
Hey Product Hunt 👋 I’ve been building software for over 18 years, and I’ve worked with APIs for most of that time. Over the years, I kept feeling the same frustration with API client tools — they slowly became bloated with features, cloud sync, and complexity, but somehow less productive for day-to-day development. Every developer ends up maintaining their own copy of collections. Tabs grow endlessly. Environment configuration becomes painful. Debugging gets harder, not easier. TiefWise comes directly from that experience. I wanted an API client that is: fast and simple local-first easy to debug git-friendly for collaboration focused on productivity, not features That’s what I tried to build. I’d really value your feedback — especially from people who use API tools daily. Thanks for checking it out 🙏
Neeta Gundala
Maker

One small "wait… what?" moment completely changed how I think about API tools.

I used Postman for years. And honestly… I complained about it a lot.

At some point I stopped complaining and thought: let me just build my own REST client for personal use.

Back when Postman was free, I logged in with my personal email and started building collections. Everything synced automatically — including API keys and tokens. It felt convenient… until I realized something uncomfortable.

When I logged into Postman on my personal machine, I realized my work collections were accessible outside the corporate network — something I hadn't fully thought through before.

That was my first "wait… what?" moment.

Day to day, I work with many APIs — different versions, different teams, different modules. Everyone had their own collections. Sharing happened over chat or email, often with keys still in them.

Very quickly, I had duplicate collections, no clear "latest" version, too many tabs open, and constant rework.

So I asked myself: why can't API collections just live in Git?

One source of truth. No confusion. No rework.

Another wall: Postman tries to serve everyone — developers, QA, leads, managers. I didn't need all that. I just wanted fast debugging: headers, timing, response compare, export to curl, and move on.

Then last year, while working on AI agents, another realization hit: API tools shouldn't only be for humans — agents need them too.

That's also why I built a CLI version, so the same APIs work for humans and agents using the same OpenAPI specs.

So I built TiefWise — a lightweight desktop client (~7MB) that stays local, works offline, and plays nicely with Git.

No accounts. No subscriptions. No cloud sync.

TiefWise is built for developers and QE engineers who want to explore, debug, and compare APIs interactively — not for running scripts or heavy automation.

After talking with colleagues, I realized this wasn't just my problem — so I decided to share it.

If this sounds like your kind of workflow, I'd love your thoughts 🙏