Available worldwide
What is Tesseract OCR?
A free, open-source optical character recognition tool that converts scanned images and documents into editable text. Tesseract uses adaptive character classification and neural network-based line recognition to support multiple languages and scripts.
Tesseract OCR pricing
We don't have Tesseract OCR's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
Platform & deployment
Independently observed- Self-hosted
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Tesseract OCR alternatives
Other computer vision apis we track, ranked by the same independent score.
- SightengineAI-powered content moderation and image analysis API for detecting, filtering, and moderating visual and textual content at scale.low · 34%
- ImaggaCloud-based APIs for automated image and video analysis with tagging, moderation, and recognition capabilitieslow · 18%
- OpenCVlow · 24%
- Google MediaPipelow · 21%
- RoboflowA complete platform for building and deploying computer vision models from dataset preparation through production inferencemedium · 54%
- Detectron2low · 21%
Compare Tesseract OCR
Side by side against other computer vision apis, attribute by attribute, with a source on every value.
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 Tesseract OCR, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Development activity | 55 | 0.09 | 5.2 | ✓ |
| Security score | 61 | 0.04 | 2.6 | ✓ |
| Stars | 92 | 0.03 | 2.4 | ✓ |
| Release cadence | 44 | 0.05 | 2.3 | ✓ |
| Capabilities | 0 | 0.08 | 0.0 | - |
| Integrations | 0 | 0.07 | 0.0 | - |
| Dependent projects | 0 | 0.06 | 0.0 | ✓ |
| Security posture | 0 | 0.07 | 0.0 | - |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 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.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 54 | mediumsource · 2026-08-26 · 65% |
Adoption
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | C++ | highsource · 2026-08-26 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-08-26 · 95% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-20 · 75% |