Tools
A practical toolkit for everyday biological research
Built-in calculators for routine laboratory work, plus quick-reference symbols and carefully selected external tools widely used in biology and molecular science.
Visual Workspace
A dedicated workspace for visual thinking and longer writing, kept in the same clean style as the rest of the site.
Notebook
Open the notebook workspace for notes, mind maps, shapes, arrows, and images, with room for both free writing and visual planning on the same page.
Writing
Large document area for longer notes
Canvas
Draggable board for diagrams and maps
Built-in Lab Tools
Click any card to open a built-in tool. Only one tool stays open at a time.
Stopwatch
Simple elapsed-time tracking in the browser
Timers
Add as many countdown timers as you need
Timer 1
Paused
Easy-to-Copy Symbols for Biology and Chemistry
Click any symbol to copy it instantly.
Greek Letters
Math & Logic
Arrows & Reactions
Special Scientific Symbols
Important Online Tools for Biologists
Hover for a quick description, or click to open the resource.
NCBI BLAST
Sequence SearchSequence similarity search for DNA or protein sequences.
ExPASy ProtParam
Protein AnalysisProtein molecular weight, pI, instability index, and more.
ExPASy Translate
TranslationTranslate DNA or RNA sequence into protein sequence.
ExPASy Compute pI/Mw
Protein PropertiesCalculate theoretical pI and molecular weight.
NEB Tm Calculator
PCR DesignEstimate PCR primer annealing temperature.
Primer-BLAST
Primer DesignDesign primers and check specificity.
IgBLAST
ImmunologyAnalyze immunoglobulin and T-cell receptor sequences.
SnapGene Viewer
Sequence ViewerView plasmids and annotated sequence files.