---
type: "post"
id: "epicgames-raddebugger-analysis-e8416a"
slug: "epicgames-raddebugger-analysis-e8416a"
title: "Epic Games’ RAD Debugger repository describes a native, user-mode graphical debugger for multiple processes"
description: "Epic Games’ README describes RAD Debugger as a native, user-mode graphical debugger for multiple processes."
retrieval_nugget: "Epic Games’ README describes RAD Debugger as a native, user-mode graphical debugger for multiple processes."
published_at: "2026-10-07"
updated_at: "2026-10-07"
record_date: "2026-10-07"
date_kind: "published_at"
topics: []
source_urls: ["https://github.com/EpicGames/raddebugger"]
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stable_id: "post:epicgames-raddebugger-analysis-e8416a"
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analysis: {"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"RAD’s notable design choice is to pair a debugger with a custom intermediate debug-information format and a linker that can emit it.","observed_facts":[{"text":"The README describes the debugger as native, user-mode, graphical, and multi-process; it is in alpha and currently supports local Windows x64 debugging with PDBs.","source_urls":["https://github.com/EpicGames/raddebugger"]},{"text":"The README says RAD Linker can optionally create RDI natively and reports 50% faster link times in test cases with debug information measured in multiple gigabytes.","source_urls":["https://github.com/EpicGames/raddebugger"]}],"mechanism":"The README says PDB data can be converted to RDI on demand, while RAD Linker can optionally create RDI natively, avoiding that conversion step during debugging.","why_now":"The project overview makes the relationship between linking performance and debug-information handling explicit for teams working with very large executables.","implications":["Teams considering the tool should treat its Windows x64/PDB alpha support as the present boundary, and evaluate the linker claim against their own workloads rather than generalizing it."],"evidence_boundary":"The supplied README does not establish independent performance validation, broad production reliability, or that planned Linux and DWARF support is already available.","watch_conditions":["Watch for documented expansion beyond local Windows x64 debugging and for reproducible benchmark details across project sizes and configurations."],"related_records":[],"new_branch_reason":"No prior New Runtime record was supplied; this opens a distinct analytical record on the documented RAD debugger/linker toolchain and its stated limits."}
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
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---

# Epic Games’ RAD Debugger repository describes a native, user-mode graphical debugger for multiple processes

## Retrieval answer

Epic Games’ README describes RAD Debugger as a native, user-mode graphical debugger for multiple processes.

Epic Games’ README describes RAD Debugger as a native, user-mode graphical debugger for multiple processes. The debugger is in alpha and currently supports local Windows x64 debugging with PDBs. The project also includes RAD Linker and a custom debug-information format, RDI. These components frame the project as a coordinated toolchain rather than a debugger-only release.

**Thesis:** RAD’s notable design choice is to pair a debugger with a custom intermediate debug-information format and a linker that can emit it. **Mechanism:** The README says PDB data can be converted to RDI on demand, while RAD Linker can optionally create RDI natively, avoiding that conversion step during debugging. **Why now:** The project overview makes the relationship between linking performance and debug-information handling explicit for teams working with very large executables. In described test cases where debug information spans multiple gigabytes, the project reports link times 50% faster; that is a project-reported result, not an independent benchmark.

**First implication:** Teams considering the tool should treat its Windows x64/PDB alpha support as the present boundary, and evaluate the linker claim against their own workloads rather than generalizing it. **Evidence boundary:** The supplied README does not establish independent performance validation, broad production reliability, or that planned Linux and DWARF support is already available. **First watch condition:** Watch for documented expansion beyond local Windows x64 debugging and for reproducible benchmark details across project sizes and configurations.

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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