01 · ASSIGN
Choose your project folder
Start with the ordinary folder that already holds your research data. No migration and no upload.
Research data history with context
Your files save the data.SepiaLog saves the reasoning.
SepiaLog is a private, local research data journal. Connect the folder you already use and write one short note after each meaningful change. SepiaLog links that note to the exact data version, so useful documentation grows while you work.
No accountNo cloudRuns locallyOptional local AI
The core loop
From one short note to a reliable research trail.
SepiaLog does not ask you to redesign your workflow. It adds one small action at the moment when the reason is still fresh.
02 · RECORD
Write what changed and why
After a meaningful change, leave one short message. A clear sentence is enough.
03 · CONNECT
SepiaLog links the exact version
The note, affected file and data state become one point on your research timeline.
04 · RETURN
Reopen the past with context
See the decision and reopen the folder as it was when that decision was made.
Build the habit now. Recover the evidence, reasoning and exact version later.
Who it’s for
Built for the people who need to explain research data later.
SepiaLog supports the everyday work behind a dissertation, a paper, a team review, or a reliable archive package.
PhD students
Save weeks of cleanup later.
A sentence today can answer a difficult question in year three. Know which file produced the result and why observations were removed.
Supervisors and PIs
See what changed in one place.
Review decisions since the last meeting and connect a paper to the exact dataset version behind it.
Data stewards and RDM offices
Give researchers a habit they can keep.
Help teams build FAIR documentation and stronger archive packages without sending sensitive data to a cloud service.
Local by design
Your research data stays on your computer.
SepiaLog works locally, requires no account, and does not depend on cloud storage for your research data.
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No account and no cloud workspaceOpen the application and work with your existing folder.
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Your files remain normal filesSepiaLog does not hide or lock them inside a proprietary cloud service.
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Optional local AIUse a compatible local model for project questions, summaries, and drafting help.
SEPIALOG · ASK MY DATASETLOCAL MODEL
Why were the 2014 observations removed?
The 2014 wave used a different sampling frame, so those observations were excluded from the cleaned panel before Table 3 was generated.Answer grounded in your local notes and project history
The future payoff
Document as you work. Stop reconstructing everything at the end.
The value is not the note itself. It is what the accumulated record makes possible when a paper, handover or archive deadline arrives.
Publication preparation
Recover the dataset state and reasoning behind a result without relying on filenames or memory.
- Methods and change summaries
- Pin the publication version
- README and citation material
Documentation that accumulates
Turn the most boring part of research data management into a small, repeatable action.
- Data management plans
- Metadata and codebooks
- Packages ready for archiving
Continuity and handover
Give your future self, supervisor or collaborator a record that explains both the data and the decisions.
- Searchable project history
- “Since our last meeting” updates
- Clearer project handovers
The habit and the payoff
Quick to record. Easy to understand later.
Use Quick Log without leaving the file you are working in. Later, Timeline brings the note and exact version back together.
Watch the videos
Why another tool?
Version control preserves revisions. SepiaLog makes the research story usable.
SepiaLog does not replace Git. It helps researchers record decisions in ordinary folders and turn that growing record into something useful later.
Version control
Excellent at preserving files and revisions.
- Tracks exact file changes
- Supports branches and collaboration
- Can store commit messages
SepiaLog
Designed to make research decisions easy to record and easy to recover.
- Short notes in a workflow made for researchers
- Notes, files, and exact versions on one visual timeline
- Reopen an earlier state together with its explanation
- Reuse the record for summaries, DMPs, and publication preparation
SepiaLog includes version history and can also work with Git or DataLad for advanced workflows.
BUILT FROM RESEARCH PRACTICEDr. Ivan ĐurićSenior Researcher · 20+ years of experience
“Researchers do not need another complicated system. They need a small habit that makes the boring documentation work pay off later.”
Give one active project a memory.
Connect its folder and record one meaningful change today. That is enough to start building the record your future work will need.