FlosForge Caller for macOS, Windows and Linux

Privacy policy for FlosForge Caller

Checked against FlosForge Caller 0.1.0 on 15 October 2026. The data controller is Dimitrios T, Athens, Greece — hello@flosforge.eu.

FlosForge Caller stores all workspaces, collections, environments, history, cookies, and settings as plain JSON files on your computer. It requires no user account, has no cloud synchronization, collects no telemetry, and performs no background update checks. The only network connections made are the HTTP requests you explicitly send.

What FlosForge Caller collects about you

Nothing. There is no account, no telemetry, no analytics, no crash reporting and no identifier of any kind. The app has no server of its own to send anything to, and it does not phone home to check for updates — there is nothing to check for — you download a newer release from GitHub whenever you decide to.

What it stores, and where

Workspaces and collections
One folder per workspace, with collections stored as individual JSON files alongside environments, globals, request history, and open tabs. On macOS in ~/Library/Application Support/FlosForge Caller/data, on Windows in %APPDATA%\FlosForge Caller\data, on Linux in ~/.config/FlosForge Caller/data, or wherever FLOSFORGE_CALLER_DATA_DIR points.
Secrets in environments
Environment variables—including fields marked as secret—are stored as plain text in local JSON files so they remain human-readable and easy to back up. Protect this directory with appropriate file permissions just as you would any local configuration holding sensitive API keys.
Cookie jar
Cookies set by target servers are preserved in cookies.json in the data folder and returned automatically on subsequent calls, just like in a browser. You can inspect, edit, or clear stored cookies at any time from within the app.
Exports and reports
Saved only to the specific location you choose in your system file dialog.

Everything it can connect to

Each of these is a connection you cause — by adding something, enabling something, or pressing a button — and none of them is made on a schedule you did not set.

The requests you send
Every request travels directly from your computer to the target host you specified, including requests triggered during collection runs or dispatched via pm.sendRequest inside scripts.
The demo workspace
If you choose to set up the demo workspace, its sample requests query free public testing endpoints (such as JSONPlaceholder, httpbin, and Open-Meteo) only when you press Send.
Links in About
External links to the repository and licence open directly in your system default web browser.

What never leaves your computer

  • Nothing is sent to FlosForge or anyone else: no user accounts, no cloud sync, no analytics, and no crash reporting.
  • The app never checks for updates or phones home in the background.
  • Scripts from imported collections run in an isolated sandbox and cannot read your filesystem or local configuration.
  • HTML response previews execute no JavaScript and load no external network resources.

Safeguards

Isolated interface
The window runs with context isolation, Chromium sandbox protections, and Node.js integration disabled, reaching the rest of the application exclusively through a typed bridge.
Sandboxed scripts
Pre-request and test scripts execute in an isolated worker under a strict Content Security Policy with no filesystem access and no network capabilities beyond pm.sendRequest, bounded by a configurable timeout.
Command-line runner isolation
During automated CLI runs, scripts execute in a worker thread without access to process environment variables, require(), or the host filesystem, preventing collections from accessing CI pipeline secrets.
Masked export reports
Sensitive tokens, authentication headers, and session cookies are automatically sanitized and masked in exported reports.

Your rights, and who to ask

Because the app holds nothing about you, there is nothing for the controller to access, correct or erase on your behalf: everything it knows is in files on your own computer, under your own control. Uninstalling the app leaves your data folder in place so your collections survive a reinstall. To remove all data completely, simply delete the FlosForge Caller data folder (locations listed below) containing your workspaces, collections, environments, cookies, and settings. For anything else, write to hello@flosforge.eu. The site-wide privacy policy covers this website, your rights under the GDPR, and the supervisory authority you can complain to.

Changes

This statement is checked against each release. If a version changes what the app stores or what it can connect to, the version and date at the top change with it.

Trademarks and affiliation

FlosForge is an independent, one-person project. It is NOT affiliated with, endorsed by, sponsored by, certified by, approved by or connected in any way to any of the companies or organisations named below, or to any other company whose products, services or trademarks appear anywhere on this site or inside its screenshots. None of them has reviewed, approved or supported this software, and no such relationship is claimed or implied. Their names appear here for one reason only: to identify the software the pages are talking about.

Apple Inc.
Apple, macOS, Mac, the Mac App Store, Touch ID, Keychain and Apple Intelligence
Microsoft Corporation
Microsoft, Windows, Visual Studio, WinUI and .NET
Google LLC
Google, Android, Google Play, Google Drive, Health Connect and Gemini
Samsung Electronics Co., Ltd.
Samsung, Galaxy, Samsung Health and S Pen
the WordPress Foundation
WordPress
Linus Torvalds
Linux, registered in the U.S. and other countries
The MITRE Corporation
CVE (registered trademark) and CWE
Docker, Inc.
Docker
the OpenJS Foundation
Node.js and Electron
Cloudflare, Inc.
Cloudflare and R2
Amazon.com, Inc. or its affiliates
Amazon Web Services, AWS and Amazon S3
GitHub, Inc.
GitHub
the OpenStreetMap Foundation
OpenStreetMap
Yoast BV
Yoast
reMarkable AS
reMarkable, reMarkable 2 and reMarkable Paper Pro

cURL, Python, Ollama, Backblaze, Wasabi, MinIO, GeoNames, OpenTopoMap, NVD (National Vulnerability Database), the security advisory databases named on the project pages, and every other product, brand or company name shown on this site or inside its screenshots are the property of their respective owners. This product uses data from the NVD API but is not endorsed or certified by the NVD. Each mark is used nominatively — to identify the software, platforms or data sources concerned — and never as a badge of origin, quality or endorsement.