What is computer-science?
A complete education in computer science using online materials designed according to undergraduate CS degree requirements, with support from a worldwide community of fellow learners.
computer-science pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Entirely free, self-paced curriculum (~2 years at 20 hours/week)
OSSU Curriculum
FreeComplete self-taught computer science curriculum
- Intro CS courses
- Core CS courses (3 years equivalent)
- Advanced CS electives
- Final capstone project
- Peer-based evaluation
- Community support
- Self-paced learning
computer-science FAQ
Common questions about computer-science, answered from independent, dated evidence.
What is the OSSU computer science curriculum?
It's a self-taught education program using freely available online courses structured around undergraduate computer science degree requirements. The curriculum progresses from foundational concepts through advanced topics and concludes with a capstone project designed for hands-on application.
Source: https://cs.ossu.dev
Is the entire curriculum free?
Yes, the program is completely free with no paid versions or premium tiers. It's an open-source project where all coursework and materials are accessible at no cost.
Source: https://cs.ossu.dev
How much time does the curriculum take?
The program is designed for completion in approximately two years if you dedicate about 20 hours per week to study. Since learning is entirely self-paced, you can adjust the timeline based on your availability and learning speed.
Source: https://cs.ossu.dev
What coursework is covered?
The curriculum includes introductory computer science courses, a three-year equivalent of core CS topics, advanced electives in specialized areas, and a final capstone project. This progression is designed to provide breadth and depth similar to a traditional degree program.
Source: https://cs.ossu.dev
How does evaluation and feedback work?
The program uses peer-based evaluation, where fellow learners in the community review your projects and provide feedback. This collaborative approach enables you to receive critique and support without formal instructor grading.
Source: https://cs.ossu.dev
Is there community support available?
Yes, the program is supported by a worldwide community of self-taught learners working through the same curriculum. Members can connect with peers, share experiences, and provide mutual support throughout their studies.
Source: https://cs.ossu.dev
Can I learn at my own pace?
The entire curriculum is self-paced, giving you full control over when and how quickly you progress through material. This flexibility allows you to balance computer science education with work and personal commitments.
Source: https://cs.ossu.dev
computer-science alternatives
Other learning resources we track, ranked by the same independent score.
The Vioscale score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for computer-science, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Github Stars | 100 | 0.04 | 3.8 | ✓ |
| Capabilities | 0 | 0.12 | 0.0 | - |
| Integrations | 0 | 0.06 | 0.0 | - |
| Github Activity | 0 | 0.14 | 0.0 | - |
| Release Cadence | 0 | 0.08 | 0.0 | - |
| Security Posture | 0 | 0.10 | 0.0 | - |
| Package Downloads | 0 | 0.20 | 0.0 | - |
| Stackoverflow Activity | 0 | 0.09 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Adoption
| Attribute | Value | Evidence |
|---|---|---|
| Github stars | 207,432 | highsource · 2026-07-30 · 90% |
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | [{"answer":"It's a self-taught education program using freely available online courses structured around undergraduate computer science degree requirements. The curriculum progresses from foundational concepts through advanced topics and concludes with a capstone project designed for hands-on application.","source":"https://cs.ossu.dev","question":"What is the OSSU computer science curriculum?","confidence":0.95},{"answer":"Yes, the program is completely free with no paid versions or premium tiers. It's an open-source project where all coursework and materials are accessible at no cost.","source":"https://cs.ossu.dev","question":"Is the entire curriculum free?","confidence":1},{"answer":"The program is designed for completion in approximately two years if you dedicate about 20 hours per week to study. Since learning is entirely self-paced, you can adjust the timeline based on your availability and learning speed.","source":"https://cs.ossu.dev","question":"How much time does the curriculum take?","confidence":0.95},{"answer":"The curriculum includes introductory computer science courses, a three-year equivalent of core CS topics, advanced electives in specialized areas, and a final capstone project. This progression is designed to provide breadth and depth similar to a traditional degree program.","source":"https://cs.ossu.dev","question":"What coursework is covered?","confidence":0.9},{"answer":"The program uses peer-based evaluation, where fellow learners in the community review your projects and provide feedback. This collaborative approach enables you to receive critique and support without formal instructor grading.","source":"https://cs.ossu.dev","question":"How does evaluation and feedback work?","confidence":0.95},{"answer":"Yes, the program is supported by a worldwide community of self-taught learners working through the same curriculum. Members can connect with peers, share experiences, and provide mutual support throughout their studies.","source":"https://cs.ossu.dev","question":"Is there community support available?","confidence":0.95},{"answer":"The entire curriculum is self-paced, giving you full control over when and how quickly you progress through material. This flexibility allows you to balance computer science education with work and personal commitments.","source":"https://cs.ossu.dev","question":"Can I learn at my own pace?","confidence":1}] | highsource · 2026-07-30 · 96% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | HTML | highsource · 2026-07-30 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-07-30 · 95% |
Pricing
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-08-05 · 60% |