Scientific figure & chart tools

79 free AI tools for research figures: graphical abstracts, pathways, mechanisms, labelled diagrams, flowcharts and publication-ready data charts.

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Diagrams & illustrations

Graphical Abstract MakerTurn your paper's story into one clear visual summary for the journal submission system.Scientific Figure MakerMake clean, publication-quality figures for papers, theses and posters from a sketch or a sentence.Scientific Illustration MakerDraw polished scientific illustrations in a clean BioRender-like, journal or textbook style.Scientific Poster Figure MakerMake big, readable infographic panels for conference and research posters.Conceptual Framework Diagram MakerShow variables, relationships and hypotheses of your study in one tidy diagram.Biological Pathway Diagram GeneratorDraw metabolic and biological pathways with correct steps, enzymes and arrow directions.Signalling Pathway Diagram MakerShow receptors, kinases and transcription factors with activation and inhibition arrows.Mechanism of Action Diagram MakerExplain how a drug or treatment works, step by step, for pharmacology and medicine.Drug Delivery System Diagram MakerDraw liposomes, niosomes, nanoparticles, micelles and transdermal systems correctly.Nanoparticle Diagram GeneratorIllustrate nanoparticles, their surface coatings and how they reach their target.Cell Diagram GeneratorLabelled animal, plant and bacterial cell diagrams for teaching and theses.DNA Diagram GeneratorDNA structure, replication, transcription and PCR diagrams, labelled correctly.Photosynthesis Diagram GeneratorLight reactions, Calvin cycle and chloroplast structure in one clear figure.Research Methodology Flowchart MakerTurn your methods section into a clean experimental workflow or study flowchart.Research Roadmap & Timeline MakerShow your PhD plan or project phases as a clean timeline or roadmap.Concept Map GeneratorConnect ideas with labelled links for revision notes, teaching and review papers.Reaction Mechanism Diagram MakerSchematic chemistry figures: reaction steps, apparatus and process diagrams.Lab Apparatus Diagram MakerClean, labelled drawings of lab setups and instruments.Physics Diagram MakerSchematics, ray diagrams, circuits and experimental setups for physics and engineering.Anatomy Diagram MakerSimplified, labelled anatomy and physiology diagrams.Sketch to Scientific FigurePhotograph a hand-drawn sketch or a figure from your notes and get a clean figure back.Free BioRender AlternativeNeed BioRender-style figures without a big subscription? Describe it and get a clean figure in minutes.

Cell biology diagrams

Plant Cell DiagramLabelled plant cell with cell wall, chloroplasts, vacuole and every organelle.Animal Cell DiagramLabelled animal cell for biology classes, notes and theses.Plant vs Animal Cell DiagramSide-by-side comparison of plant and animal cells with the differences highlighted.Cell Membrane DiagramFluid mosaic model with phospholipids, proteins, cholesterol and glycocalyx.Golgi Apparatus DiagramGolgi cisternae, cis and trans faces and vesicle traffic.Mitochondria DiagramMitochondrion structure with cristae, matrix and both membranes labelled.Microscope DiagramLabelled compound light microscope for practical files.Bacterial Cell DiagramProkaryotic cell structure with capsule, wall, plasmid and flagellum.Virus Structure DiagramViral structure: capsid, envelope, spikes and genome.

Genetics & cycles

DNA Replication DiagramReplication fork with helicase, primase, polymerases, Okazaki fragments and ligase.Cell Cycle DiagramG1, S, G2 and M phases with checkpoints in a clean cycle diagram.Meiosis DiagramMeiosis I and II stages, crossing over and four haploid cells.Mitosis DiagramProphase, metaphase, anaphase and telophase in order.Cellular Respiration DiagramGlycolysis, Krebs cycle and electron transport chain with ATP yield.Krebs Cycle DiagramCitric acid cycle with every intermediate and enzyme.Calvin Cycle DiagramCarbon fixation, reduction and regeneration of RuBP.Carbon Cycle DiagramCarbon cycle with sources, sinks and fluxes.Nitrogen Cycle DiagramFixation, nitrification, assimilation, ammonification and denitrification.Water Cycle DiagramEvaporation, condensation, precipitation and runoff.Rock Cycle DiagramIgneous, sedimentary and metamorphic rocks and the processes between them.Pedigree Chart MakerFamily pedigree charts with standard symbols for inheritance problems.Phylogenetic Tree MakerClean phylogenetic trees and cladograms.Plasmid Map MakerCircular plasmid maps with genes, promoters and restriction sites.

Human body diagrams

Heart DiagramLabelled human heart with chambers, valves, vessels and blood flow.Neuron DiagramNeuron structure and synapse, labelled.Digestive System DiagramHuman digestive tract and accessory organs.Respiratory System DiagramAirways, lungs and alveoli with gas exchange.Skeletal System DiagramMajor bones of the human skeleton labelled.Kidney & Nephron DiagramKidney cross-section and nephron with filtration steps.Skin Layers DiagramEpidermis, dermis and hypodermis with appendages; great for transdermal research.Ear DiagramOuter, middle and inner ear labelled.Eye DiagramHuman eye cross-section labelled.

Scientific diagrams

Biology Diagram MakerAny biology diagram from a sentence: cells, organs, processes and cycles.Molecular Orbital Diagram MakerMO energy-level diagrams with orbitals and electrons.PRISMA Flow Diagram GeneratorPRISMA 2020-style flow diagrams for systematic reviews.CONSORT Diagram GeneratorCONSORT flow diagrams for randomised trials.Neural Network DiagramNeural network architecture diagrams for ML and AI papers.Journal Cover Art MakerEye-catching cover-style illustrations for your research.Lab Protocol Workflow DiagramStep-by-step lab protocols as clear visual workflows.

Data charts

Bar Chart with Error BarsUpload your data and get a journal-ready bar chart with mean ± SD or SEM.Box Plot GeneratorBox plots with individual points, ready for publication.Violin Plot GeneratorShow the full distribution of each group with violin plots.Scatter Plot with RegressionScatter plots with regression line, equation and R².Volcano Plot GeneratorVolcano plots for differential expression, with thresholds and top genes labelled.Heatmap GeneratorHeatmaps of expression or correlation matrices with clean colour bars.Forest Plot GeneratorForest plots for meta-analyses and subgroup results.Kaplan-Meier Survival CurveSurvival curves with censor marks and numbers at risk.Dose-Response Curve & IC50Fit sigmoid dose-response curves and report IC50/EC50.Drug Release Profile PlotCumulative % drug release and dissolution profiles with error bars.Bland-Altman Plot GeneratorMethod-comparison plots with bias and limits of agreement.PCA Plot GeneratorPCA score plots with groups and explained variance.Line Chart GeneratorClean line charts with error bands for time series and kinetics.Histogram GeneratorHistograms and density curves for distributions.Stacked Bar Chart GeneratorStacked and grouped bar charts with clean legends.Pie & Donut Chart GeneratorSimple pie and donut charts with percentages.

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ChemDraw Alternative for SchematicsNeed reaction schemes or apparatus drawings fast? Describe them instead of drawing by hand.GraphPad Prism AlternativePublication-ready statistics charts from Excel without learning new software.

Free tools

Image DPI & Print Size CheckerCheck an image's pixel size and the largest size you can print it at 300 or 600 dpi. Runs in your browser; nothing is uploaded.Colour-Blind Simulator for FiguresSee how your figure looks to people with protanopia, deuteranopia or tritanopia. Runs in your browser; nothing is uploaded.Punnett Square MakerMake mono- and dihybrid Punnett squares with genotype and phenotype ratios instantly.