TAO vs Codio

TAO8.7Visit Codio8.6Visit

Higher score TAO #5 in Automated Grading Software 8.7/10 Free plan Free plan✓ 0 of 5 features Visit TAO

vs

Codio #6 in Automated Grading Software 8.6/10 Paid ✓ 3 of 5 features Visit Codio

• TAO fits best

  Open, standards-based institutional assessment

• Codio fits best

  Affordable coding courses and bootcamps

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Side by side

Feature	TAO 8.7/10 Visit ↗	Codio 8.6/10 Visit ↗
At a glance
Editor score	8.7	8.6
Ranking	#5 in Automated Grading Software	#6 in Automated Grading Software
Best for	Open, standards-based institutional assessment	Affordable coding courses and bootcamps
Pricing model	Free plan + paid	Paid
Starting price	€499/mo	$90/user/yr
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud, Self-hosted	Cloud, Desktop
Platforms	Web	Web, Windows, macOS, Linux
Support	Tickets, Community, Docs	Live chat, Docs
Integrations	9 integrations	8 integrations
Built for	Small business, Mid-market, Enterprise	Small business, Mid-market, Enterprise
Features TAO 0/5 · Codio 3/5
Programming autograding	Not checked yet	✓ (best)
Math autograding	Not checked yet	—
Written-work OCR	Not checked yet	Not checked yet
LMS or LTI support	Not checked yet	✓ (best)
Question bank	Not checked yet	✓ (best)
Specs
Supported code languages	Not checked yet	4 languages
Our review
Pros	Supports automated, manual, partial-credit, and weighted-response scoring Offers QTI, LTI 1.3, Moodle, proctoring, and specialist integrations Combines self-hosted, cloud-hosted, test-center, and LMS delivery	Automates code, multiple-choice, fill-in-the-blank, and Parsons assessments Includes browser-based IDEs, managed environments, and custom grading scripts Supports LMS grade passback, reusable assessment libraries, and rubrics
Cons	Community Edition requires self-hosted deployment Paid plans are billed annually Advanced service and implementation options require paid tiers	No free plan is available Verified programming-language coverage is four languages Math autograding is not supported
Our verdict	TAO is an open-source computer-based testing platform for educators, assessment professionals, education ministries, higher-education institutions, professional associations, and public-sector employers. It combines WYSIWYG authoring,… Read the review →	Codio is a cloud learning platform for colleges, universities, bootcamps, workforce programs, and developer education teams. It combines browser-based coding environments, interactive courseware, programming assignments, automated… Read the review →

Strengths and trade-offs

• TAO — where it wins

  • Supports automated, manual, partial-credit, and weighted-response scoring
  • Offers QTI, LTI 1.3, Moodle, proctoring, and specialist integrations
  • Combines self-hosted, cloud-hosted, test-center, and LMS delivery

  Where it doesn't

  • Community Edition requires self-hosted deployment
  • Paid plans are billed annually
  • Advanced service and implementation options require paid tiers

• Codio — where it wins

  • Automates code, multiple-choice, fill-in-the-blank, and Parsons assessments
  • Includes browser-based IDEs, managed environments, and custom grading scripts
  • Supports LMS grade passback, reusable assessment libraries, and rubrics

  Where it doesn't

  • No free plan is available
  • Verified programming-language coverage is four languages
  • Math autograding is not supported

• TAO8.7/10 · Free plan

  A standards-based assessment platform with broad scoring, delivery, analytics, and deployment options.

  Visit TAOFull verdict →
• Codio8.6/10 · Paid

  A flexible coding assessment platform for affordable courses and bootcamps.

  Visit CodioFull verdict →