A daily journal for your research data. Log what you changed, see your history, and stay archive-ready — all on your own computer.
Who it's for Built for researchers, PhD students, and labs who want their data well-documented — without the extra busywork.
Six quiet helpers that turn the small notes you take today into the documentation your future self needs.
Jot a quick note whenever you touch your data. Streaks and an activity heatmap keep the habit fun.
See every version of your dataset from “Original” to now, where the most changes happened, and reopen the data exactly as it was at any point.
A step-by-step wizard captures the right metadata from day one. Save your progress and continue any time.
Powered by git and DataLad under the hood — but simple enough for non-coders. Nothing to configure, nothing to break.
Generate summaries and data management plans with an open-source model that runs on your own machine. Your data never leaves your computer.
Export a checksummed package with a README, data management plan, and metadata — ready to hand straight to a repository.
No migration, no setup ritual. Point it at a folder and start writing — the documentation assembles itself in the background.
Open or create a project folder on your computer. That folder is your journal — no import, no upload.
Each time you work with the data, leave a short memo of what changed and why. A sentence is plenty.
Produce summaries, data management plans, and an archive-ready package whenever the moment calls for it.
SepiaLog was created by Dr. Ivan Đurić, a Senior Researcher at the Leibniz Institute of Agricultural Development in Transition Economies (IAMO). He built it out of a need that grew from more than 20 years of research experience.
Keeping up with the constant transformations a dataset goes through over a project's lifetime is a never-ending struggle. And when the motivation to track that processing slips — as it always does — it turns into real problems later, the moment results need to be regenerated or the data prepared for publication.
SepiaLog exists to fix exactly that: to help PhD students and researchers turn one of the most tedious and demanding parts of research into something genuinely easy.
Enjoy journaling.
Free and open source · Runs locally · No accounts, no cloud