Crosscheck alter how team report bugs. Capture every detail with visual session replay. Fix Faster.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Software as a Service (SaaS)
- Google Chrome
United States
+5
Requestly Alternatives
Apps similar to Requestly include Postman, which has a free version. Other options are Fiddler, Yaak, mitmproxy and Hoppscotch. HTTP Clients like Requestly are a crowded field, with more than 50 alternatives for Mac, Windows, Linux, the web and self-hosting.
Alternatives list
Open-source native macOS HTTP debugging proxy — intercept HTTPS, inspect APIs, mock responses, debug WebSocket & GraphQL. Community-driven. For developers, by developers.
Cost / License
- Free
- Open Source (AGPL-3.0)
Application type
Platforms
- Mac
- Homebrew
+9
HarborClient is a free, open-source desktop API client for macOS, Windows, and Linux. It gives you a familiar Postman-style workspace—collections, environments, request scripts, and a tabbed editor—while keeping your work on your machine or on storage you control.
Cost / License
- Free
- Open Source (MIT)
Platforms
- Windows
- Mac
- Linux
- United States
Upcoming API testing tool in beta, built in GoLang, supporting HTTP/gRPC, workspaces, environments, request management, and various content types. Features include dark mode, local data storage, Postman import, environment variable setting, and request chaining.
Cost / License
- Free
- Open Source (BSD-3-Clause)
Application typeApplication types
Platforms
- Mac
- Linux
+4
gRPC is a modern open source high performance Remote Procedure Call (RPC) framework that can run in any environment. It can efficiently connect services in and across data centers with pluggable support for load balancing, tracing, health checking and authentication.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Self-Hosted
- United States
With Jam, in one click, you can: take a screenshot, record a video, or capture an instant replay, and Jam will instantly generate a link to share with your team.
Cost / License
- Freemium
- Proprietary
Platforms
- Microsoft Edge
- Google Chrome
- Opera
- Brave
Germany
EU
Header Override lets you modify or inject HTTP headers and cookies to customize web requests and responses.
Cost / License
- Free
- Open Source
Platforms
- Microsoft Edge
- Google Chrome
- Mozilla Firefox
Ukraine
Native desktop app for Windows offers high-performance REST and HTTP API testing, low memory and CPU use, custom methods, portable version, proxy support, multiple environments, code generation, multilingual interface, and import/export in light or dark themes.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Mac
- Windows
- Linux
- United States
+9
46 HTTP Debugger alternativesHTTP Debugger captures and decrypts HTTP/HTTPS from any Windows app without proxy setup — HTTP/2, WebSocket, SSE, gRPC and localhost included. Edit and replay requests, modify traffic on the fly, and let an AI assistant read the session over the built-in MCP server.
Cost / License
- Paid
- Proprietary
Application typeApplication types
Platforms
- Windows
+2
Kreya is a GUI client for gRPC, REST and WebSocket APIs with innovative features for environments, authorizations and more.
Cost / License
- Freemium
- Proprietary
Application typeApplication types
Platforms
- Mac
- Windows
- Linux
Switzerland
+1
18 HTTP Headers alternativesHTTP Headers allows you to quickly see the HTTP header information for the current URL.
Platforms
- Mac
- Windows
- Linux
- Google Chrome
The goal of this project is to adds information about the HTTP headers in three ways:
Cost / License
- Free
- Proprietary
Application type
Platforms
- Mac
- Windows
- Linux
- Firefox
Canada
