Tesseract OCR
An open-source engine for recognizing and extracting text from images
- Also known as
- tesseract-ocr
Available worldwide
What is Tesseract OCR?
An optical character recognition system that uses neural networks to identify and extract text from image files, supporting both modern machine learning approaches and legacy pattern-matching methods.
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.
What Tesseract OCR does
The capabilities that matter for computer vision apis, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Custom model training
- ✓
- Face recognition
- -
- OCR text extraction
- ✓
- Content moderation
- -
- Video support
- -
- Edge on device support
- ✓
- Open source
- ✓
- Commercial license required for saas
- ✗
- SOC2
- -
Platform & deployment
Independently observed- CLI
- Windows
- Self-hosted
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Tesseract OCR FAQ
Common questions about Tesseract OCR, answered from independent, dated evidence.
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. It is indexed under Computer Vision Apis.
Source: https://tesseract-ocr.github.io/
Is Tesseract OCR free to use?
Tesseract OCR is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.
Source: https://tesseract-ocr.github.io/
Can Tesseract OCR be self-hosted?
Yes. Tesseract OCR can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://tesseract-ocr.github.io/
Is Tesseract OCR open source?
Yes. Tesseract OCR is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Tesseract OCR alternatives
Other computer vision apis we track, ranked by the same independent score.
- Amazon Rekognitionlow · 43%
- SightengineReal-time detection and filtering of problematic images, videos, and text contentlow · 43%
- RoboflowEnd-to-end platform for building, training, and deploying computer vision AI modelsmedium · 55%
- Google MediaPipelow · 25%
- ImaggaCloud-based APIs for automated image and video analysis with tagging, moderation, and recognition capabilitieslow · 11%
- OpenCVCross-platform library for building computer vision applicationslow · 34%
Compare Tesseract OCR
Side by side against other computer vision apis, attribute by attribute, with a source on every value.
The vioscaleAI 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 | 53 | 0.14 | 7.1 | ✓ |
| Capabilities | 67 | 0.08 | 5.4 | ✓ |
| Stars | 92 | 0.05 | 4.3 | ✓ |
| Release cadence | 44 | 0.08 | 3.6 | ✓ |
| Security score | 56 | 0.05 | 3.0 | ✓ |
| Integrations | 0 | 0.05 | 0.0 | - |
| Dependent projects | 0 | 0.05 | 0.0 | ✓ |
| Security posture | 0 | 0.12 | 0.0 | - |
| Package downloads | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.14 | 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 | 46 | mediumsource · 2026-09-13 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 4 items | mediumsource · 2026-09-10 · 69% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Open source, Ocr text extraction, Custom model training, Edge on device support | mediumsource · 2026-10-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | C++ | highsource · 2026-10-14 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-10-14 · 95% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-20 · 75% |
Pricing
Release
Security
Is Tesseract OCR the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Tesseract OCR against the rest of the computer vision apis we index, using the same dated evidence weighted your way.
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