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10 Best Free Online Drawing Software – 2022


Free Online Drawing Software Tools 2022: Diagrams are effective communication elements that can visualize and make others understand our concepts faster than anything else. There are hundreds of drawing tools available online but choosing the right diagrammatic tool to draw the figures in our thesis is quite complicated also a single tool cannot be more effective for all kinds of diagrams. with this intention, ilovephd covers the top 10 free online drawing tools for effective thesis diagrams.

Best Free Drawing Software Tools Online


Biorender is one of the best scientific drawing tools for researchers. This simple web application helps you to draw effective figures in the field of biotechnology, immunology, neuroscience, and more life science research areas.

Free Drawing Software


  • With Biorender you can create scientific diagrams 50x faster with intuitive drag-and-drop functionality. Choose the required template from the thousands of pre-made templates.
  • It supports all type of formats for publications, presentations, web, or print.
  • Browse over 20,000 free icons from neuroscience, immunology, microbiology, and 30+ life science fields.
  • Store and share illustrations in our secure web-based application with lab and team members.

2. Edrawsoft.com

Edrawsoft is a scientific illustration software to draw scientific diagrams easily with the help of examples and templates. Edraw provides various professional-looking diagrams such as flowcharts, organizational charts, mind maps, network diagrams, floor plans, workflows, fashion designs, UML diagrams, electrical diagrams, science illustrations, charts, and graphs.

edrawsoft ilovephd

Features of Edrawsoft

This scientific illustration software includes the diagram templates of physics, chemistry and mathematics. shapes are designed to take the commonly used visual notations such as a molecular diagram, chemistry test, physics illustration, and circuit diagrams.

Physics: Circuit Diagrams, Mechanics physics, Lenses, Mirrors, and Prisms, Light Sources and Waves, Magnetism, Pulleys and Levers, and Vehicles.

Chemistry: Laboratory Equipment, Chemistry Equation, Molecular Model and Organic Compounds

Mathematics: 3-D Geometry, Analytical Geometry, Angles, Circles & Ellipses.

Edraw also supports all major operating systems like Windows, MAC, and Linux OS.

3. Inkscape.org

Inkscape is professional quality vector graphics open-source software to create scientific illustrations, icons, diagrams, maps and web graphics. Inkscape uses the W3C open standard SVG (Scalable Vector Graphics) as its native format.

Features of Linkscape.org

Inkscape provides various tools to draw an effective high-quality vector graphic diagram. Some of the highlighted tools are given below.

  • Drawing: pencil tool (freehand drawing with simple paths), pen tool (creating Bézier curves and straight lines), calligraphy tool (freehand drawing using filled paths representing calligraphic strokes)
  • Shape tools: rectangles (may have rounded corners), ellipses (includes circles, arcs, segments), stars/polygons (can be rounded and/or randomized), spirals
  • Text tool (multi-line text, full on-canvas editing)
  • Embedded bitmaps (with a command to create and embed bitmaps of selected objects)
  • Clones (“live” linked copies of objects), including a tool to create patterns and arrangements of clones

Inkscape.org also available on Windows, Mac OS X and GNU/Linux operating systems.

Gimp or GNU Image Manipulation Program is a cross-platform image editor available for GNU/Linux, OS X, Windows and more operating systems. It is free software, you can change its source code and distribute your changes. It is easy to draw scientific diagrams with Gimp.

Features of Gimp

  • It provides the tools needed for high-quality image manipulation. From retouching to restoring to creative composites, the only limit is your imagination.
  • GIMP is used for producing icons, graphical design elements, and art for user interface components and mockups.
  • It is a high-quality framework for scripted image manipulation, with multi-language support such as C, C++, Perl, Python, and Scheme.
  • Gimp developed under the GNU General Public License – Creative Commons (CC).

5. TikZ

TikZiT is a cross-platform application that allows the creation and modification of TeX diagrams written using the PGF/TikZ macro library. It is especially geared toward rapidly creating “dot”-diagrams for use in academic papers.

TikZ and PGF are TeX packages for creating graphics programmatically. TikZ is building on top of PGF and allows you to easy scientific diagrams for your research paper and thesis.

6. Draw.io (Free Drawing Software)

Draw.io is one of the famous online drawing tools from open source technology. It helps to create diagramming applications, illustrations, scientific diagrams, and flow charts.

draw.io Online is free and you can store your diagrams with your favorite cloud sharing service(Google Drive, Onedrive, and Dropbox) or on your own device.

Features of Draw.io

  • Create flow charts, processing diagram charts, organization charts, and UML diagram in an easy manner.
  • Draw.io supports easy network diagram creation.
  • You use it both online and Offline Mode.

7. Microsoft Visio (Free Drawing Software)

Using Microsoft Visio you can draw attractive flowcharts, diagrams, org charts, floor plans, engineering designs, and more, using modern shapes and templates with the familiar Microsoft Office experience.

Features of Microsoft Visio

  • You can connect your flowcharts and diagrams to real-time data.
  • Applied shape formatting automatically updates your flowcharts to reflect changes in the underlying data, either in Visio or through Office 365*.
  • Draw a flowchart, map an IT network, build an organizational chart, or document a business process.
  • You can draw advance data visualization using Business Intelligence(BI) by connecting your diagrams with data sources.

8. Smartdraw.com

SmartDraw Software drawing and data visualization tool to visualize data in relational formats like trees flows, and timelines, automatically, without any human input. 

Features of Smartdraw

  • Build and edit diagrams easily with the help of SmartDraw’s intelligent formatting engine.
  • Automatic spacing, alignment, sizing and colour schemes for a professional finish.
  • You can draw CAD-like drawing abilities with standard engineering scales.
  • Chart-based diagrams, Graph-based diagrams, and Schematic diagrams are very simple with SmartDraw.

9. Gliffy.com

Gliffy is Diagramming software and cloud-based application. GliffyIt is used to create UML diagrams, floor plans, Venn diagrams, flowcharts, and various other kinds of diagrams online. Diagrams from Gliffy is wonderful and very suitable for thesis printing and research papers.

Features of Gliffy

  • Draw diagrams like flow charts, Venn diagrams, org charts, AWS architecture, UML diagram, Network diagram, and business process model.
  • Drag and drop shapes or use templates and themes.
  • Add visuals directly to Jira and Confluence
  • Access previous versions in the revision history.
  • Share diagrams via URL or embedding.

10. Cacoo.com

Cacoo is a cloud-based drawing application. with this you can create, edit, and comment on diagrams in real-time to visualize and document every step of the diagram creation. Cacoo helps to draw powerful scientific diagrams and flowcharts with advanced features.

Features of Cacoo

  • Track when a diagram was last edited, and save diagram versions to compare changes over time.
  • Create graphs and charts using your own data. Import from a spreadsheet or input directly into Cacoo.
  • Get high-resolution diagrams with SVG, PDF, PowerPoint, and PostScript exporting options.
  • Embed your diagrams in a wiki, website, or blog, and they will automatically update when edited in Cacoo.