Euphony is an open-source web application from OpenAI that transforms raw Harmony chat conversations and Codex CLI session logs into interactive, filterable timelines in the browser. It supports JSON and JSONL formats, providing a visual interface for debugging agent workflows and inspecting structured chat data used in training, evaluation, and agent pipelines.
Euphony
Render AI chat data and Codex logs into browsable views
Euphony Introduction
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PricingPaid
ListedJul 06, 2026
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