Lab ToolsBuilt-in & ExternalPractical for Biologists

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.

Notebook Workspace

A quiet local workspace for writing notes, drafting ideas, and keeping small research tasks in order.

Opens in a new tabNotebook

Notebook

Open a minimal academic workspace for longer notes, article drafts, lab reminders, and local task planning.

WritingQuick NotesTasksDraftsLocal Save

Writing

Large document area for longer notes

Tasks

Simple local task maker

Use it for private notes and small academic tasks.Open Notebook ->

Built-in Lab Tools

Click any card to open a built-in tool. Only one tool stays open at a time.

A280 Protein Concentration Calculator

Calculate protein concentration from A280 absorbance using extinction coefficient and path length.

A280protein concentrationabsorbanceextinction coefficientBeer-LambertNanodropprotein quantification
Open calculator ->

Protein Concentration Unit Converter

Convert protein concentration between µM, mg/mL, and µg/mL using molecular weight in kDa.

µM to mg/mLmg/mL to µMµg/mL to µMprotein concentrationmolecular weightkDa
Open converter ->

Stopwatch

Simple elapsed-time tracking in the browser

00:00

Timers

Add as many countdown timers as you need

Timer 1

Paused

05:00

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 Search

Sequence similarity search for DNA or protein sequences.

Open tool ↗

ExPASy ProtParam

Protein Analysis

Protein molecular weight, pI, instability index, and more.

Open tool ↗

ExPASy Translate

Translation

Translate DNA or RNA sequence into protein sequence.

Open tool ↗

ExPASy Compute pI/Mw

Protein Properties

Calculate theoretical pI and molecular weight.

Open tool ↗

NEB Tm Calculator

PCR Design

Estimate PCR primer annealing temperature.

Open tool ↗

Primer-BLAST

Primer Design

Design primers and check specificity.

Open tool ↗

IgBLAST

Immunology

Analyze immunoglobulin and T-cell receptor sequences.

Open tool ↗

SnapGene Viewer

Sequence Viewer

View plasmids and annotated sequence files.

Open tool ↗