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Free tools for fermentation & cell culture scientists

Calculators, trackers, and optimizers built by bioprocess engineers. Replace your scattered Excel sheets with purpose-built tools that work on your phone at the bench.

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The Toolkit

Every tool a bioprocess scientist needs — from bench to bioreactor. Built for daily use, designed for mobile.

Process Monitoring

CellTrack — Growth & Viability Tracker

Log VCD, viability, glucose, lactate, titer, pH, DO. Auto-calculates specific growth rate (µ), doubling time, qP, qGlc, IVC. Beautiful charts. CSV export. Works offline.

CHO E. coli Yeast All organisms Mobile-first

Process Design & Scale-Up

Fed-Batch Feed Strategy Calculator

Generate exponential, linear, and constant feeding profiles from your organism's kinetic parameters. Monod-based predictions for biomass, substrate, and product trajectories.

E. coli HCDC CHO perfusion Pichia MeOH

Bioreactor Scale-Up / Scale-Down Calculator

Scale between vessel sizes using constant kLa, P/V, tip speed, or Re. Calculates impeller RPM, power input, gas flow. Includes standard vessel geometry presets.

Rushton Pitched blade 1L → 1000L

OTR / kLa Estimator

Estimate volumetric mass transfer coefficient for stirred tanks (Van't Riet) and shake flasks (Büchs). Compare OTR vs. OUR to predict oxygen limitation.

Stirred tank Shake flask

Fermentation Economics Calculator

Back-of-envelope cost-of-goods per gram of product. Input titer, downstream yield, media cost, run duration. Compare batch vs. fed-batch vs. continuous.

COGS Process economics

DOE Experiment Generator

Design of Experiments run table generator. Full Factorial, Fractional Factorial, Plackett-Burman, CCD, Box-Behnken, Definitive Screening. Bioprocess presets. CSV export.

Factorial CCD QbD

Recombinant Protein Production

E. coli Expression Condition Optimizer

Input your protein properties — get recommended strain, promoter, temperature, IPTG range, induction OD, fusion tags, and chaperone co-expression strategy.

BL21 Rosetta SHuffle

Protein Degradation Risk Assessor

Scan for N-end rule risks, PEST sequences, protease-sensitive sites. Get stabilizing tag recommendations and protease inhibitor cocktail suggestions.

N-end rule PEST scan Stability

Media Formulation & Cost Estimator

Compare basal media costs, calculate supplement concentrations, estimate media cost per liter and per batch. Serum vs serum-free break-even analysis.

CD-CHO DMEM Cost/L

Downstream Processing & Purification

Chromatography Column Calculator

Column dimensions, flow rate converter, resin loading, buffer volumes, HETP/plates, and column scale-up. Presets for Protein A, IEX, HIC, SEC, mixed mode.

Protein A IEX HETP

Buffer Preparation Calculator

Stock solution prep, C1V1=C2V2 dilution, Henderson-Hasselbalch pH buffers, serial dilution planner, and common bioprocess buffer recipes (PBS, Tris, HEPES).

pH Buffer Dilution Recipes

Filtration & TFF/UF-DF Calculator

Vmax-based sterile filter sizing, disc-to-cartridge scale-up, TFF/UF-DF processing calculator, membrane selection guide. Throughput and flux validation.

0.2µm UF/DF Vmax

Viral Clearance LRV Calculator

Calculate log reduction values per clearance step. Build multi-step clearance strategies. Compare against ICH Q5A regulatory thresholds. Model virus reference panel.

ICH Q5A LRV Regulatory

Centrifugation Scale-Up Calculator

Sigma factor method for scaling lab centrifuges to disc stack or tubular bowl. Stokes settling velocity, RPM/RCF converter, Q/Sigma equivalence, separation efficiency.

Sigma Stokes Disc Stack

Protein A Resin Lifetime Calculator

Track DBC decay over chromatography cycles, predict resin replacement, compare resins (MabSelect, PrismA, Amsphere), CIP impact simulation, cost-per-gram optimization.

Protein A DBC CIP

Inclusion Body Refolding Generator

Input protein properties (MW, disulfides, pI). Get solubilization buffer, refolding buffer with redox pairs, strategy recommendation, and a print-ready protocol.

Urea GdnHCl GSH/GSSG

QC, Analytics & Engineering

Endotoxin Dilution Calculator

MVD calculation, endotoxin limit by route (IV, intrathecal, ophthalmic), dilution series generator with pipetting volumes, PPC spike recovery validation. USP <85> compliant.

MVD LAL USP

Osmolality Calculator

Estimate media osmolality from component concentrations. Optimal range checker by cell type. Feed impact predictor. Conductivity-to-osmolality correlation.

mOsm/kg CHO Media

Bioreactor Gas Mixing Calculator

Calculate O2/air/N2/CO2 gas blends for target DO and pH. Sparger flow rates, oxygen enrichment breakpoint analysis, CO2 stripping, gas cost estimation.

DO Control O2 Enrich CO2/pH

Bioreactor Heat Transfer Calculator

Size cooling jackets and coils. Calculate metabolic + agitation heat generation, LMTD, cooling water flow rate. Thermal risk assessment with scale comparison.

Jacket Cooling LMTD

Cell Line Development & Emerging Modalities

Cell Bank Sizing Calculator

Plan MCB/WCB/EoPC campaigns. QC vial allocation, ICH Q5D stability schedule, product lifecycle planning. Calculate vials needed from clinical through commercial.

MCB WCB ICH Q5D

Clone Selection Scorecard

Multi-criteria weighted scoring for clone ranking. Radar chart comparison, traffic light indicators, CSV export. Templates for mAb, biosimilar, bispecific.

CLD Ranking Radar

mRNA Process Yield Calculator

Model end-to-end mRNA manufacturing: IVT yield, purification waterfall, LNP encapsulation, doses per batch, cost per dose. Scale comparison from 1mL to 5L.

IVT LNP Doses

Cell Culture & Troubleshooting

CHO Cell Culture Troubleshooter

Interactive decision tree for diagnosing common CHO problems. Viability dropping? Low titer? High lactate? Walk through systematic diagnosis with corrective actions.

CHO-K1 CHO-S Diagnostics

Seed Train Expansion Planner

Plan your complete seed train from vial to production bioreactor. Auto-selects vessels, calculates timing, media volumes, and generates a visual expansion diagram.

CHO HEK293 Vero

Perfusion & Continuous Process Calculator

CSPR, VVD, bleed rate, steady-state prediction. Compare batch vs fed-batch vs perfusion productivity and media costs. Cell retention device reference.

ATF CSPR Continuous

Cell Therapy Expansion Planner

Plan CAR-T, CAR-NK, iPSC, MSC manufacturing. Calculate expansion requirements, vessel selection, timeline, and cost per dose. Autologous vs allogeneic comparison.

CAR-T iPSC MSC

Lab Essentials

RPM ↔ g-Force (RCF) Converter

Convert RPM to RCF and back instantly. Rotor presets for Eppendorf, Beckman, Thermo Fisher centrifuges. Common protocol quick-reference. Mobile-friendly for bench use.

RPM RCF Rotors

Protein MW & Extinction Coefficient

Paste amino acid sequence → get molecular weight, extinction coefficient (ε280), A280 for 1 mg/mL, estimated pI, charge vs pH curve. Common protein presets.

MW ε280 pI

Cell Counting & Viability Calculator

Hemocytometer cell counter with visual grid input. VCD, viability %, passage planner with vessel and organism presets. Multi-count growth tracking with charts.

VCD Viability Passage

Growth Curve Fitter & µ Calculator

Paste OD or cell count data, auto-fit exponential, logistic, and Gompertz models. Extract µmax, doubling time, lag time. Model comparison with R² and AIC.

µmax Gompertz OD600

Bioreactor Data Dashboard

Upload CSV from any bioreactor system. Auto-generate time-series charts for DO, pH, VCD, metabolites. Multi-run overlay. Derived metrics (µ, qP, IVC). Data never leaves your browser.

CSV Charts Private

Protein Concentration Calculator

BCA assay, Bradford assay, and direct A280 protein quantification. Standard curve fitting, Beer-Lambert law, dilution correction, and purification yield tracker.

BCA Bradford A280

ELISA Data Analyzer (4PL Fit)

4-parameter logistic curve fitting for ELISA data. Standard curve with LLOQ/ULOQ, back-calculated sample concentrations, %CV flagging, accuracy validation.

4PL LLOQ %CV

Molarity & Solution Calculator

Calculate mass from molarity, percent solutions (w/v, v/v, w/w), concentration unit converter (M to mM, uM, nM). Built-in library of 50+ reagent molecular weights.

Molarity % w/v MW Library

Master Mix Calculator

PCR, qPCR, RT-PCR reaction setup for N reactions with dead volume. 6 protocol presets (Standard PCR, SYBR, TaqMan, High-Fidelity, Colony PCR, RT). CSV export and pipetting guide.

PCR qPCR Dead Vol

OD600 to Cell Density Converter

Convert optical density to cells/mL, CFU/mL, and dry cell weight. Organism presets for E. coli, yeast, Pichia, Bacillus. Dilution factor correction and linearity warnings.

OD600 CFU/mL DCW

DNA / RNA Calculator

A260 to concentration (ng/uL), mass-to-moles conversion (ng/uL to nM/uM for oligos, plasmids, RNA), Nanodrop purity check with 260/280 and 260/230 interpretation.

A260 Purity ng→nM

Built for your bench

Whether you're growing CHO cells for a monoclonal antibody or fermenting E. coli for a recombinant protein — these tools fit your workflow.

Biopharma

CHO, HEK293, hybridoma for mAbs, vaccines, cell & gene therapy

Recombinant Protein

E. coli, Pichia, yeast expression for enzymes, therapeutics, research reagents

Industrial Fermentation

Ethanol, organic acids, amino acids, biopolymers, food & beverage biotech

Academic Research

PhD students, postdocs, and PIs studying microbial physiology, metabolic engineering

Algae & Plant Cell

Microalgae, cyanobacteria, and plant cell suspension cultures for biofuels, pigments

Anaerobic Biotech

Clostridium, methanogens, SRB for biogas, syngas fermentation, bioremediation

Cell & Gene Therapy

CAR-T, CAR-NK, iPSC, MSC manufacturing, viral vector production, autologous & allogeneic

Process Development

Scale-up, tech transfer, process characterization, DoE, PAT implementation