InterceptSuite vs mitmproxy, Burp Suite & Echo Mirage.
Burp Suite is HTTP-only. mitmproxy reaches much further - TCP, UDP, DTLS, QUIC - but through Python scripts and a command line. Echo Mirage did thick clients via DLL injection, but it is long abandoned. InterceptSuite brings all of it into one native GUI with a C core built for performance. Here is an honest look at where each tool fits.
Four tools, four different jobs
Burp Suite is the industry standard for web application security testing. It is built around HTTP/HTTPS and shines at scanning, fuzzing, and repeating web requests. If your target is a website or a REST API, Burp is hard to beat.
mitmproxy is a superb open-source, scriptable proxy - and genuinely capable beyond HTTP. Modern versions (v10+) intercept raw TCP, UDP, and DTLS, with experimental QUIC/HTTP-3 support, all driven by its powerful Python addon API. It is the closest tool to InterceptSuite in raw protocol coverage; the real differences are architecture and experience, not a checklist.
Echo Mirage was, for years, the go-to for intercepting thick-client traffic. It works by injecting a DLL into the target process to capture its socket calls. It is clever, but it only captures plaintext TCP - it cannot decrypt TLS, and has no UDP, DTLS, or QUIC support. Combined with being Windows-only, injection-based (fragile and easily detected), and effectively unmaintained, that makes it a poor fit for modern apps, which almost all use TLS.
InterceptSuite solves the problem the others were never designed for, the modern way: intercepting non-HTTP traffic through a proxy rather than injection. Thick-client desktop apps, IoT devices, databases, and proprietary protocols rarely speak clean HTTP - they speak raw TCP, TLS wrapped around a binary protocol, DTLS over UDP, or QUIC. That is the gap InterceptSuite fills.
What makes InterceptSuite different
InterceptSuite was built from the ground up for performance and simplicity, not adapted from an HTTP tool or reliant on process injection. A few things set it apart:
Core networking written in C, native to each OS
The interception engine is written in C and compiled to a native binary for Windows, macOS, and Linux. There is no interpreter or JVM in the hot path, so it handles high-throughput connections with low overhead - not a Python or Java process wrapping every packet.
Proxy-based, not injection-based
Unlike Echo Mirage, InterceptSuite never injects into the target process. Traffic is routed through a standard proxy, so it is stable, works with apps that resist injection, and does not risk crashing or being flagged by the software you are testing.
One proxy for every protocol - zero per-protocol setup
Point your traffic at the built-in SOCKS5 proxy once and InterceptSuite automatically detects and MITMs whatever comes through: TCP, TLS, DTLS, QUIC, UDP, and STARTTLS upgrades. You do not configure a separate mode, listener, or plugin for each protocol.
A real native GUI, not a browser tab or terminal
Everything - live interception, connection history, packet editing, and settings - lives in a native desktop application. No juggling a terminal TUI and a browser UI; no remembering command-line flags.
Easy to install and easy to start
A one-click installer per platform. No pip environment, no Java runtime, no DLL injection setup - generate the CA, trust it once, and you are intercepting.
Edit and replay packets in real time
Forward, drop, or modify any packet in flight, then replay captured packets to reproduce and probe behaviour - across every supported protocol, not just HTTP requests.
STARTTLS and TLS-upgrade aware
Protocols that begin in plaintext and upgrade to TLS mid-connection (SMTP, IMAP, LDAP, PostgreSQL) are detected and intercepted automatically. This is a blind spot not just for HTTP-only proxies like Burp, but for mitmproxy too - it has no automatic STARTTLS upgrade detection.
PCAP export to Wireshark
Every intercepted, decrypted session can be exported to a standard PCAP file and opened in Wireshark for deeper forensic analysis or to attach to a report.
Extensible with Python
Write custom dissectors and automation against the Python extension API to decode proprietary wire formats - without giving up the native performance of the core.
InterceptSuite vs mitmproxy
Let's be honest: mitmproxy is genuinely capable. Modern versions intercept raw TCP, UDP, and DTLS, not just HTTP - so this is not a "we support protocols they don't" pitch. The real differences are architecture and experience. mitmproxy is written in Python and driven from the command line, a terminal TUI, or the mitmweb browser UI; anything beyond HTTP typically means writing Python addons to parse and display it. InterceptSuite runs a native C core for higher throughput, and gives you a full native desktop GUI where every protocol is intercepted, edited, and replayed the same way with zero scripting or per-protocol setup. It auto-detects STARTTLS upgrades and exports decrypted sessions straight to PCAP for Wireshark. In short: similar protocol reach, very different day-to-day workflow. Where mitmproxy wins - it is free and open source, and unbeatable for headless, fully-scripted HTTP automation in a CI pipeline.
InterceptSuite vs Burp Suite
Burp Suite is the gold standard for web app pentesting - its scanner, repeater, and intruder have no equivalent in InterceptSuite, and we do not try to compete there. But Burp is HTTP/HTTPS only. It cannot intercept raw TCP, TLS over a non-HTTP protocol, DTLS, UDP, or QUIC. The two tools are complementary: use Burp for the web layer, and InterceptSuite for everything underneath it. Many teams run both.
InterceptSuite vs Echo Mirage
Echo Mirage pioneered thick-client interception, and if you have tested desktop apps you have probably used it. But it only captures plaintext TCP - it cannot decrypt TLS, which almost every modern application now uses, making it a dead end for most real targets. Its DLL-injection approach is also a liability: Windows-only, prone to crashing or being detected by the target, and unmaintained for years. InterceptSuite delivers thick-client visibility through a stable, cross-platform proxy that actually decrypts TLS - no injection - plus DTLS, QUIC, UDP, PCAP export, and a maintained GUI. We wrote a full walkthrough in InterceptSuite vs Echo Mirage: a modern alternative.
Feature comparison
| Feature | InterceptSuite$200/yr | mitmproxyOpen source | Burp SuiteCommunity / Pro | Echo MirageLegacy |
|---|---|---|---|---|
| Protocol Support | ||||
HTTP / HTTPS HTTP is the primary focus of mitmproxy and Burp | ||||
Raw TCP (plaintext) Echo Mirage captures plaintext TCP via DLL injection | ||||
TLS over non-HTTP Echo Mirage cannot decrypt modern TLS | ||||
DTLS (TLS over UDP) mitmproxy added DTLS support in v10 | ||||
Raw UDP | ||||
QUIC InterceptSuite: QUIC v1 | ||||
STARTTLS / TCP→TLS auto-detect SMTP, IMAP, LDAP, PostgreSQL - automatic in InterceptSuite | ||||
Custom / proprietary binary protocols Echo Mirage only if the protocol is plaintext (no TLS) | ||||
| Architecture & Experience | ||||
Approach InterceptSuite / mitmproxy / Burp use a proxy; Echo Mirage injects DLLs into the target process | ||||
Native desktop GUI mitmproxy offers a browser UI and terminal TUI | ||||
Core written in C, native per-OS binary mitmproxy is Python; Burp is Java; Echo Mirage is Windows-only | ||||
Actively maintained Echo Mirage has been unmaintained for years | ||||
Zero per-protocol configuration | ||||
One-click installer | ||||
Real-time packet edit (forward / drop / modify) | ||||
Packet / request replay | ||||
PCAP export → Wireshark | ||||
Extension API InterceptSuite & mitmproxy use Python; Burp uses Java/Python/Kotlin | ||||
Connection / session history | ||||
Project file (save / reopen work) | ||||
| Web Application Testing | ||||
Automated vulnerability scanner | ||||
HTTP repeater / intruder / fuzzer | ||||
Browser-integrated workflow | ||||
| Platform | ||||
Windows Echo Mirage struggles on modern Windows | ||||
macOS | ||||
Linux | ||||
| Pricing | ||||
Price 7-day free trial, no card needed | $200/yr | Free · open source | $499/yr | Free |
Which tool should you reach for?
InterceptSuite
- Thick-client & desktop app testing
- IoT and embedded device protocols
- Database protocols (PostgreSQL, MySQL, IMAP)
- DTLS, QUIC, and raw UDP traffic
- STARTTLS / TLS-upgrade interception
- Custom & proprietary binary protocols
- Malware / C2 traffic analysis
mitmproxy
- Headless, scripted interception (HTTP, TCP, UDP)
- CI / automation pipelines
- HTTP/2 traffic inspection
- Free & open-source requirement
- Command-line-first workflows
- Custom Python addons
Burp Suite
- Web application security testing
- Automated vulnerability scanning
- REST & GraphQL API testing
- HTTP repeater / intruder / fuzzing
- OWASP Top 10 web assessments
- Browser-integrated workflows
Still using Echo Mirage? It is the legacy option - see why a modern proxy-based alternative is worth the switch.
Ready to go beyond HTTP?
InterceptSuite is the only native GUI tool that intercepts TCP, TLS, DTLS, QUIC, and UDP in a single app - with a C core built for performance.