Accurate, technically precise alt-text for every image including the most complex STEM visuals.
From standard image alt-text and STEM diagram descriptions to decorative image management and bulk delivery at scale, Margo Learning writes alt-text that is genuinely meaningful, backed by a 25,000+ SME network with subject expertise across every academic discipline and industry domain.
25,000+ Subject Matter Experts
WCAG 2.1 AA Compliant
Bulk Alt-Text at Scale
Subject-Aware Writers
The Challenge
A STEM diagram described as “an image” tells a visually impaired learner nothing.
A circuit schematic in an electrical engineering course. A statistical graph in a university economics module. A human anatomy diagram in a NEET preparation platform. A process flowchart in a corporate compliance training. A mathematical equation in a K-12 textbook. Generic, auto-generated alt-text describes what an image looks like, not what it means.
Margo Learning writes accurate, technically precise alt-text for educational content of every complexity across K-12, higher education, test prep, corporate training, and vocational skilling, backed by a 25,000+ SME network who understand the subject matter as well as the accessibility requirement.
What We Deliver
Alt-text that is as rigorous as the content it describes.
Standard Alt-Text Writing
Accurate, concise alt-text for images, illustrations, photographs, maps, and simple diagrams written in context with the surrounding content to ensure the description conveys the image's intended meaning for the learner.
Complex STEM Alt-Text
Technically precise alt-text for complex STEM visuals such as physics force diagrams, chemistry structural formulas, mathematics graphs and geometric figures, biology anatomical diagrams, and engineering schematics written by SMEs with subject expertise in the relevant discipline.
Decorative Image Management
Identification of decorative images that convey no learning value and application of null alt-text (alt="") to prevent screen readers from announcing irrelevant content that would disrupt the learner experience.
Who We Work With
Built for every organisation whose images need to mean something to every learner.
STEM Publishers & EdTech Platforms
Writing technically accurate alt-text for complex scientific, mathematical, and engineering diagrams across large educational content libraries.
Universities & Academic Publishers
Providing contextually appropriate alt-text for visually rich academic content including graphs, charts, maps, and scientific illustrations.
Test Prep Platforms
Writing technically precise alt-text for STEM diagrams, mathematical equations, and scientific figures in JEE, NEET, and other competitive exam content.
Corporate L&D & Compliance Teams
Providing alt-text for infographics, process diagrams, compliance flowcharts, and data visualisations in corporate training and onboarding content.
K-12 Publishers & Curriculum Developers
Writing grade-appropriate, subject-accurate alt-text for all images in digital K-12 curricula from simple illustrations to complex STEM diagrams.
STEM Subjects We Cover
AI Advantage
AI speed. SME accuracy. The best of both.
Margo Learning uses AI to draft alt-text for straightforward images at scale, while every complex STEM and technical image is reviewed by a subject matter expert before delivery.
- AI-assisted alt-text drafting for standard and straightforward images at scale.
- SME human review for all complex STEM and technical image alt-text.
- Automated image classification to identify complex versus standard images.
- AI-powered context extraction from surrounding content for contextually appropriate descriptions.
- Automated WCAG compliance checking for alt-text completeness and length guidelines.
Frequently Asked Questions
Common questions.
Auto-generated alt-text tools describe what they see visually, such as "a graph showing data" or "a diagram with shapes." For educational content, this is almost always insufficient. A physics force diagram needs to describe the direction, magnitude, and label of every force vector. A chemistry structural formula needs to convey the molecular bonds and atom types. Meaningful educational alt-text requires subject matter understanding which our 25,000+ SME network provides.
Get Started
Ready to make every image in your content accessible?
Tell us about your alt-text needs and let's explore how Margo Learning can help you write accurate, contextually appropriate, and WCAG-compliant alt-text for every image in your learning content however complex the subject matter.