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Local-first prompt version control for developers: Git-style history & diffs in a single SQLite file (CLI, Python API, read-only Streamlit UI).

5 starsPython

PromptLedger – local-first prompt versioning in SQLite

by emut1·Mar 29, 2026·2 points·0 comments

AI Analysis

●●SolidCozyBig Brain

Git-style prompt versioning in a single SQLite file—no SaaS, no telemetry.

Strengths
  • Single SQLite file means portable history without standing up infrastructure.
  • Multiple diff modes including semantic summaries for prompt changes.
  • Read-only Streamlit UI for timeline viewing without modifying the ledger.
Weaknesses
  • Prompt management tools like Promptfoo and LangSmith already exist with more features.
  • Local-first limits team collaboration unless you sync the SQLite file yourself.
Target Audience

LLM developers, prompt engineers, AI application builders

Similar To

Promptfoo · LangSmith · Helicone

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