Free Diagram & Chart Generators
Make labeled diagrams, charts, and graphs for biology, chemistry, physics, math, economics, and more. Generate with AI or build them exactly — then download as PNG or SVG in seconds.
Research
Professional visualizations for academic papers, presentations, and reports
Graphical Abstract Maker
Create professional graphical abstracts for journal submissions. AI-powered tool for researchers to visualize research findings for Elsevier, Nature, Cell, and more.
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AI Infographic Generator
Create professional infographics in minutes with AI. Transform your data and ideas into beautiful visual stories for presentations and reports.
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Text to Diagram Generator
Transform text descriptions into professional diagrams. Create flowcharts, architectures, and process maps instantly with AI.
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Conceptual Framework Generator
Create conceptual framework diagrams for research papers and theses. Visualize variable relationships and theoretical models.
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Theoretical Framework Generator
Create theoretical framework diagrams based on TAM, TPB, UTAUT, and other established theories. Perfect for dissertations and academic research.
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Scientific Poster Generator
Create professional scientific posters for conferences and symposiums. AI generates proper layouts with all essential academic sections.
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AI Chart Generator
Generate professional charts from text descriptions. Create bar charts, line graphs, pie charts, and scatter plots instantly with AI.
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Column Chart Maker
Create accurate grouped, stacked, and 100% stacked column charts from CSV or spreadsheet data. Export SVG, PNG, and CSV.
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Bar Chart Maker
Create horizontal, grouped, and stacked bar charts for rankings, comparisons, and classroom data visualization.
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Software
System analysis diagrams, architecture visualizations, and software engineering tools
Activity Diagram Generator
Create UML activity diagrams for workflows, business processes, and system behavior. AI-powered with swimlanes, decision nodes, and fork/join support.
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Use Case Diagram Generator
Create UML use case diagrams from actors, system boundaries, use cases, and include or extend relationships. Export SVG, PNG, and PlantUML.
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Sequence Diagram Generator
Create UML sequence diagrams showing messages between users, services, APIs, databases, and external systems.
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Context Diagram Generator
Create professional context diagrams (Level 0 DFD) online for free. AI-powered system context diagram maker for visualizing system boundaries and external entity interactions.
Open toolMedical
Medical illustrations, anatomy diagrams, and healthcare education visuals
Nursing Concept Map Generator
Generate nursing care plan and pathophysiology concept maps from a fictional case, with exact reference diagrams for the correct layout.
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Dermatology Patient Education Illustrations
Make skin condition and skin care illustrations for patient handouts, with diverse skin tones and plain-language labels. Clinician review needed.
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Medical Infographic Maker
Make medical and patient education infographics from facts you cite, such as hand hygiene, blood pressure, and stroke signs. Clinician review needed.
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Root Canal Procedure Diagram Generator
Make root canal step diagrams, tooth cutaways, and before and after pictures for patient handouts. Steps checked against AAE. Clinician review needed.
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Dental Implant Diagram Generator
Make dental implant diagrams with labeled parts, 4-step procedure sequences and implant vs bridge comparisons for patient education. Clinician review needed.
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Physical Therapy Exercise Illustration Generator
Make step-by-step exercise illustrations for home exercise program handouts, such as bridge, clamshell, and pendulum. Therapist review needed.
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Clinical Pathway Diagram Generator
Make illustrative care pathway flowcharts for sepsis, hip fracture, diabetes or stroke teaching. Example steps drawn from public NICE guidance. Clinician review needed.
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Stages of Labor Diagram Generator
Make modest stages of labor, cervical dilation, and position illustrations for prenatal classes and handouts. Clinician review needed.
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Medical Illustration Generator
Generate professional medical illustrations with AI. Create anatomy diagrams, surgical procedures, organ systems, and healthcare visuals for medical education.
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Biology
Cell diagrams, anatomy charts, and life science worksheets
96 Well Plate Template Generator
Make a 96 or 384 well plate map with standard curve, serial dilution, replicate and control presets, and export SVG, PNG, PDF or CSV.
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Floral Diagram Generator
Create botanical floral diagrams from floral formula notation. Parse sepals, petals, stamens, carpels, fusion rings, mother axis, and bract.
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Parts of a Flower Diagram Generator
Create labeled parts-of-a-flower diagrams with AI — petal, sepal, stamen (anther, filament), and pistil (stigma, style, ovary, ovule), plus blank worksheets.
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Animal Cell Diagram Generator
Create free printable animal cell diagrams. Generate labeled and unlabeled versions perfect for biology worksheets and quizzes.
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Eukaryotic Cell Diagram Generator
Generate labeled eukaryotic cell diagrams and eukaryotic vs prokaryotic cell comparisons, with the nucleus, ER, Golgi, and mitochondria.
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Plant Cell Diagram Generator
Generate printable plant cell diagrams showing cell wall, chloroplasts, and central vacuole. Ideal for science worksheets.
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Animal vs Plant Cell Comparison
Create side-by-side comparison worksheets showing key differences between animal and plant cells for biology class.
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Meiosis Diagram Generator
Create meiosis diagrams showing homologous chromosomes, crossing over, meiosis I, meiosis II, and gamete formation.
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Photosynthesis Diagram Generator
Create free printable photosynthesis diagrams showing light reactions, Calvin cycle, and chloroplast structure. Ideal for biology worksheets.
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Chemistry
Chemistry posters, periodic tables, and chemical bonding diagrams
Chemistry Poster Maker
Generate professional chemistry posters and science displays with AI. Create periodic table posters, chemical bonds, and lab safety displays.
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GHS Pictograms
All 9 GHS hazard pictograms with meanings, signal words and hazard classes. Free SVG and PNG downloads and a printable A4 or Letter poster.
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Chemistry Structure Generator
Free ChemDraw alternative. Create molecular structures, reaction mechanisms, and chemical diagrams with AI for research papers and lab reports.
Open toolLewis Dot Structure Generator
Create Lewis dot structures and valence electron diagrams for chemistry homework, worksheets, and teaching materials.
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Create Bohr model diagrams for atoms, electron shells, valence electrons, and chemistry classroom visuals.
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Polyatomic Ions Chart
Free polyatomic ions chart with 38 common ions, charges and naming rules. Filter, search, flashcards, printable and blank practice sheets.
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Functional Groups Chart
Free organic functional groups chart with 25 groups, structures, IUPAC suffixes and priority order. Filter, compare, print or download.
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Solubility Rules Chart
Free solubility rules chart with 190 salts, 8 rules and a precipitate checker with net ionic equations. Print or download.
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IR Spectroscopy Table
Free IR spectroscopy table with 64 functional group absorptions. Look up a peak in cm-1, filter by region, print or download.
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Earth Science
Water cycle, rock cycle, and environmental science diagrams
Carbon Cycle Diagram Generator
Create carbon cycle diagrams showing photosynthesis, respiration, decomposition, fossil fuels, and atmospheric carbon exchange.
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Water Cycle Diagram Generator
Generate free printable water cycle diagrams showing evaporation, condensation, and precipitation. Perfect for earth science worksheets.
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Rock Cycle Diagram Generator
Create rock cycle diagrams showing igneous, sedimentary, and metamorphic rock transformations for earth science.
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Volcano Diagram Generator
Create labeled volcano diagrams with AI — cross-sections with the magma chamber, conduit, vent, crater, lava, and ash cloud, plus volcano types and eruption diagrams.
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Hertzsprung-Russell Diagram Generator
Plot a Hertzsprung–Russell (HR) diagram — stars charted by surface temperature and luminosity with the main sequence, giants, supergiants, and white dwarf regions labeled on a reversed logarithmic temperature axis. Precise SVG/PNG export plus an AI sketch mode.
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Moon Phases Diagram Generator
Create labeled moon phases diagrams with AI — all 8 phases in order, the Sun-Earth-Moon geometry that explains them, waxing vs waning, and the lunar cycle.
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Solar System Diagram Generator
Create labeled solar system diagrams with AI — the Sun and eight planets in order, orbits, the asteroid belt, inner vs outer planets, and planet size comparisons.
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Layers of the Earth Diagram Generator
Create labeled layers of the Earth diagrams with AI — crust, mantle, outer core, and inner core cross-sections with depth, temperature, and composition.
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Plate Tectonics Diagram Generator
Create labeled plate tectonics diagrams with AI — divergent, convergent (subduction), and transform plate boundaries, mantle convection, trenches, and volcanic arcs.
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Historical figures, timelines, and social studies worksheets
Seasonal
Holiday-themed science activities and coloring pages
Education
Hand-drawn illustrations and teaching materials for educators
Production Possibilities Curve Generator
Draw a PPC or PPF with increasing or constant opportunity cost, capacity shifts, and free SVG or PNG export.
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AI Worksheet Generator
Create printable worksheets from grade level, subject, topic, question type, and difficulty. Generate student sheets with answer keys.
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Graphic Organizer Generator
Create graphic organizers for classrooms, research notes, comparisons, cause-effect analysis, and structured thinking.
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Metric Prefixes Chart
Free metric prefixes chart with all 24 SI prefixes from quetta to quecto, an exact prefix converter and printable posters.
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Science Doodle Maker
Create hand-drawn style scientific illustrations for teaching. Generate friendly doodles for biology, chemistry, physics, and earth science concepts.
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Create professional, labeled science drawings for biology, chemistry, physics, and earth science. Generate textbook-quality scientific diagrams with AI.
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PPT Text to Visual Converter
Transform PowerPoint text into professional visual graphics with AI. Create charts, diagrams, infographics, and illustrations for presentations instantly.
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Sentence Diagram Generator
Create sentence diagrams to visualize grammar structure. Free AI-powered sentence diagramming tool with Reed-Kellogg notation for students and teachers.
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Syntactic Tree Generator
Create syntactic tree diagrams for linguistics class with phrase structure, X-bar theory, and constituency analysis.
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Business
Quality management, root cause analysis, and business process diagrams
Gantt Chart Maker
Create Gantt charts for project timelines, tasks, milestones, dependencies, and presentation-ready planning visuals.
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Fishbone Diagram Generator
Create fishbone (Ishikawa) diagrams for root cause analysis and quality management. Free AI-powered cause and effect diagram maker with 6M categories.
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Org Chart Maker
Create organization charts for teams, departments, reporting lines, project groups, and business presentations.
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Value Stream Map Maker
Make a value stream map with process boxes, data boxes, inventory triangles, push or pull arrows, and a lead-time timeline.
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Pugh Matrix Generator
Score options against a datum with +, S and −, add weights, and export the Pugh matrix with net and weighted totals as SVG, PNG or CSV.
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Issue Tree Generator
Break a problem into branches, mark hypotheses, add numbers for a driver tree, and export the issue tree as SVG, PNG, CSV or an outline.
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Flywheel Diagram Maker
List 3 to 8 stages that feed each other, mark friction points, and export the flywheel diagram as SVG, PNG, CSV or text.
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Risk Heat Map Maker
Plot risks on a 3x3, 4x4 or 5x5 likelihood and impact matrix, score each risk, and export the heat map as SVG, PNG or CSV.
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SIPOC Diagram Maker
Fill in suppliers, inputs, process steps, outputs, and customers and download an exact SIPOC diagram or blank template as SVG or PNG.
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Physics
Force diagrams, free body diagrams, and physics education visuals
Motion Diagram Physics Maker
Create physics motion diagrams with position dots, velocity arrows, acceleration arrows, and SVG, PNG, or CSV export.
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Vector Diagram Physics Maker
Create precise physics vector diagrams with components, head-to-tail addition, resultant calculation, and SVG, PNG, or CSV export.
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Free Body Diagram Generator
Create free body diagrams for physics with labeled forces. Free AI-powered diagram maker for students, teachers, and engineers.
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Circuit Diagram Maker
Create professional circuit diagrams for physics and electrical engineering. Free AI-powered circuit diagram creator with standard IEEE symbols.
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Wiring Diagram Maker
Create professional wiring diagrams and electrical schematics online. AI wiring diagram drafts, with exact reference diagrams to check them against.
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Ray Diagram Generator
Draw accurate ray diagrams for converging and diverging lenses and concave and convex mirrors, with real vs virtual image formation. Free, with SVG and PNG export.
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Wave Diagram Generator
Create labeled wave diagrams with AI — transverse and longitudinal waves with crest, trough, wavelength, amplitude, and equilibrium, plus blank worksheets.
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Electric Field Diagram Generator
Create labeled electric field line diagrams with AI — point charges, dipoles, like charges, and parallel plates, with field direction arrows and blank worksheets.
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Pulley Diagram Generator
Create labeled pulley system diagrams with AI — fixed, movable, and compound pulleys with rope, load, effort, and mechanical advantage, plus blank worksheets.
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Engineering
Blueprints, floor plans, and architectural layout tools for design and construction
Bode Plot Generator
Generate Bode magnitude and phase plots from transfer function coefficients. Calculate crossover frequencies, gain margin, and phase margin.
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Nyquist Plot Generator
Enter a transfer function to draw G(jω) on the complex plane and download SVG.
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Smith Chart Generator
Paste impedance or reflection coefficient to draw a Smith chart and download SVG.
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Root Locus Plot Generator
Enter a transfer function to draw Evans closed-loop pole paths and download SVG.
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Logic Gate Symbols
AND, OR, NOT, NAND, NOR, XOR, XNOR and buffer in ANSI and IEC symbols, with Boolean expressions, computed truth tables and SVG or PNG downloads.
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Circuit Symbols Chart
Circuit symbols chart with resistor, capacitor, diode, transistor and more in ANSI and IEC styles, with SVG and PNG downloads and a printable cheat sheet.
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AWG Wire Gauge Chart
AWG wire gauge chart from 0000 to 40 with diameter, mm², kcmil, copper resistance, an AWG to mm² converter, a voltage drop calculator and printable sheets.
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Ohm's Law Chart
Ohm's law chart with the wheel and triangle, all 12 formulas for voltage, current, resistance and power, a calculator with unit prefixes and printable sheets.
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Resistor Color Code Chart
Resistor color code chart for 4, 5 and 6 band resistors with colors to value and value to colors calculators, E series values and printable sheets.
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Why Teachers & Students Choose ConceptViz
AI-Powered Generation
Describe what you need and get a professional diagram in seconds, or build it exactly with a precise tool. No design skills required.
Labeled & Unlabeled Options
Generate labeled versions for teaching and unlabeled ones for quizzes and student practice.
Print-Ready Quality
Download high-resolution PNG or SVG, ready for slides, reports, worksheets, and printing.
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