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Tech riderRev. 3 Oct 2026

UDB

Ch 096.7of 27 Debuggers
  1. 1Runs onBrowser, Linux
  2. 2Costsfree trial
  3. 3Supported languagesC, C++
  4. 4Target platformsLinux
  5. 5Remote debuggingYes
  6. 6Conditional breakpointsYes
  7. 7Exception breakpointsYes
  8. 8Time-travel debuggingYes
8 lines stated Written from the maker's own pages: undo.io
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The UDB homepage

Overview

UDB is ranked #9 of 27 in debuggers on Specifiction. It runs on Browser extension, Linux. There is no free plan. A free trial is offered.

UDB plans and pricing

All plans
Land and Prove Program $50,000 once $50K program entry fee · unlimited development access for 6 months · development and CI environments; production debugging priced after assessment undo.io · 3 Oct 2026

Compared on debuggers

Free plan
Noundo.io
Supported languages
C, C++undo.io
Target platforms
Linuxundo.io
Remote debugging
Yesundo.io
Conditional breakpoints
Yesundo.io
Exception breakpoints
Yesundo.io
Time-travel debugging
Yesundo.io
Core dump debugging
Yesundo.io

Facts

Purpose
UDB is an interactive time travel debugger for Linux C/C++ that records program execution so developers can replay it and inspect state.undo.io · 3 Oct 2026
Debugging
UDB supports forward and reverse execution with variable and memory inspection, scripting, conditional breakpoints, and watchpoints.undo.io · 3 Oct 2026
Workflow
Users can launch a program in UDB or attach it to a running process.undo.io · 3 Oct 2026
GDB compatibility
Undo says UDB is 100% compatible with GDB and adds a handful of commands for time travel debugging.undo.io · 3 Oct 2026
IDE integrations
The product page names Visual Studio Code, CLion, Eclipse, and Emacs integrations; the Eclipse guide labels that integration experimental.undo.io · 3 Oct 2026
AI debugging
UDB's explain command lets an AI coding assistant drive the debugger using an Undo recording to investigate a problem.undo.io · 3 Oct 2026
Setup
Undo says UDB requires no compilation or build changes and no kernel or system configuration.undo.io · 3 Oct 2026
Supported environment
The documented engine requires 64-bit Linux and supports 32-bit and 64-bit x86 processes with standard license configurations; ARM support is opt-in.docs.undo.io · 3 Oct 2026
Operating system limit
The engine does not support non-Linux operating systems such as Windows or macOS.docs.undo.io · 3 Oct 2026
Kernel-space limit
UDB supports user-space code only, not kernel-space code.undo.io · 3 Oct 2026
Trial
Undo offers a free trial, but the pages opened here do not state its duration.undo.io · 3 Oct 2026
Security and evaluation
Undo says customers can evaluate UDB within their firewall without sending anything externally.undo.io · 3 Oct 2026
Team support
The enterprise team package includes white-glove support with direct access to Undo's engineering team.undo.io · 3 Oct 2026
Intended users
Undo describes UDB as suited to individual developers and highlights race conditions, deadlocks, memory corruption, segfaults, and stack corruption as debugging use cases.undo.io · 3 Oct 2026

Company

Headquarters
Cambridge, UKundo.io · 28 Sept 2026

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Where it ranks on Specifiction

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Sources