For bench scientists

Everything you did, and how it connects.

Bourn records your lab work as you go, from the materials and the experiment to the files, the analysis, the figures and the thesis, each linked to the step before. Months later, you can still see how a result was made.

Download for Mac See what it does

Version 0.5.0 · Apple silicon · English and 繁體中文

bourn.S
Study
Drug response in HeLa cells
Experiment
Dataset
Analysis run
Result
Report
Western blot
12 Oct 2026
SDS-PAGE, rev. 3
anti-β-actin · A23
Blot scans
12 files · TIFF
Quantification
Run #14 · 4 nodes
Verified
Figure 2B
Table 1
ratiodecr.Control1.00Treated0.5842 %
ThesisChapter 3
3.3 Results
Figure 2B. Protein levels.
Levels fell by 42 % in
treated cells (Fig. 2B).

One record, bench to thesis

Every step stays linked to the one before it.

HeLa cells · P12RIPA bufferBCA assay kitAnti-β-actin · A23PVDF membrane+ 8 moreWestern blot12 Oct · SDS-PAGE v3Blot scans12 TIFF imagesPlate readingBCA · CSVQuantificationWorkflow · run #14Fig. 2ABandsFig. 2BLevelsTable S1ValuesThesisChapter 3MATERIALSEXPERIMENTFILESANALYSISFIGURESREPORT

Materials

Reagents, lots, boxes

Experiment

A protocol, done on a day

Files

The files it produced

Analysis

A workflow run on them

Figure

Kept in a Study

Report

Your thesis or paper

1 · Materials

Everything on the shelf, with its lot

Materials as a sheet, one tab per kind, imported from Excel. Every freezer, rack and box is drawn where it really sits, with its history.

−80 °C Freezer A
Box 7 · cDNA
cDNA · HeLa 24 h · 12 Oct
Moved here from Box 3 · today
qPCR setup· 12 Oct · protocol rev. 3
1 · Master mix
Reactions SYBR 2× Primers
2 · Add template
cDNA · HeLa 24 h · Box 7, C4
3 · Run the program
Annealingthe protocol says 60 °C
⚑ Deviation · Why: “primer Tm is higher”
Amended 14 Oct · Ct threshold 0.20 → 0.25 · Why: “baseline drift”
Bench sheet
scan to open the record
2 · Experiment

Your bench record, step by step

Each experiment is a protocol on a given day, filled in at the bench or afterwards, whenever suits you. Amounts follow the number of reactions, tubes come straight from your boxes, and a value that differs from the protocol asks why. After Mark done, every change is an amendment with its reason, and the printed bench sheet leads back to the record.

3 · Files

Your files stay where you put them

Files stay on your disk or the lab server; Bourn records each one by its path and fingerprint instead of copying it. Attach a file to the experiment that made it, and see everything that uses it: runs, Studies and reports.

Places
Home
Shared
Recent
Home › qpcr › 2026-10-12
plate_1.csv48 KB
plate_2.csv48 KB
melt_curve.csv212 KB
gel_photo.tif6.1 MB
raw
plate_1.csv
48 KB · CSV
welltargetCt
A1GAPDH18.2
A2MYC24.9
Experiment
Attach to experiment…qPCR setup · 12 Oct
Used by
Run #14 · QuantificationStudy · Drug responseThesis · Chapter 3
Recorded by path and fingerprint, not copied
Verify · results match ✓
Read images
Segment nuclei
thresholdOtsu
Measure
labelarea
1412
2688
3301
4 · Analysis

Analysis you can check again

Draw the analysis from nodes. Every run keeps its recipe, and Verify re-runs it on the same files to tell you whether the results still match.

5 · Figures & Studies

Results that remember, kept in a Study

Keep the figures, tables and values that matter in a Study. A re-run offers a new version instead of swapping it in, and each Result carries its Facts and where it is used.

StudyDrug response in HeLa cells
Fig. 2B
Run #15 made a newer version.
It is offered, never swapped in by itself.
CompareAccept
Facts
TestWelch t-testn3 per groupNormalised toβ-actin
Used inThesis · Chapter 3Run #15Western blot · 12 Oct
3.2 Methods
Protein levels were measured by Western blot · 12 Oct
after transfer to PVDF @(Towbin et al., 1979).
References
Towbin et al., 1979
Electrophoretic transfer of proteins…
Laemmli, 1970
Cleavage of structural proteins…
Bradford, 1976
A rapid and sensitive method…
3.3 Results
Figure 2B. Protein levels after treatment.
From run #14 · Quantification
Levels fell by 42 % in treated cells. From Table 1, run #14 · cell “decr.”
6 · Report

Write the thesis where the work is

Type @ to cite from your reference library. Link a Methods sentence to the experiment it describes, place figures straight from your Studies, and every number stays tied to the run that produced it.

And

Works with the AI you already use

Connect Claude or another AI app to Bourn. It can read your protocols and runs and propose workflows. Bourn asks before it reads your notes, and never lets it invent a value.

Your AI app
Count the nuclei in last week's DAPI images
I'll look at your experiments in Bourn first.
I've put a proposed workflow on your canvas.
Bourn
Let the AI read the notes in “DAPI staining · 24 Oct”?
Once Until quit Deny
Proposed
Read images
Segment nuclei
Count objects
Accept
Added to your workflow ✓

Plugins

Nodes and tools come from plugins. Bourn installs and updates them for you.

All plugins and tools →
Image 0.11.4
Read microscope images, segment, draw regions and masks, measure.
Table 1.3.0
Filter, join, group and reshape tables from any step.
Statistic 1.5.0
Common tests, regression and standard curves, with n and the test recorded.
Plot 0.7.0
Publication figures, a figure editor and composed panels.
Video 0.3.1
Time-lapses, FRAP and MP4 export.
Sequence 0.1.0
View and align DNA and protein sequences.
Files 1.0.2
List and pick input files for a workflow.
Script 1.0.3
Your own Python as a node.
Search 0.1.0
Finds what you mean, even in other words or the other language.

Start from a tested protocol

A free catalogue in English and 繁體中文, adapted from openly licensed sources. Copy one, link your own materials, and it's yours.

Browse the catalogue →
  • PCR (Taq, 25 µL)
  • qPCR setup (SYBR Green)
  • SDS-PAGE and western blot
  • BCA protein assay
  • RNA extraction
  • Plasmid miniprep
  • Passaging adherent cells
  • and 8 more
Bourn app icon

Get Bourn

It updates itself, and its plugins, when a new version is out.

Download for Mac · 0.5.0

Apple silicon · macOS 14 or later · Release notes

Windows and Intel Macs: not yet.