Philter
- Android app
- Not listed
- Free plan
- Yes
- Paid plans from
- $8.33/mo
- Runs on
- api, Linux, self-hosted, Windows
Summary
Philter is open source software that identifies and redacts personally identifying and protected health information in text. For detected entities, users can choose to mask, encrypt, substitute synthetic values, remove them, or leave them unchanged. Policies, custom dictionaries, and patterns for identifiers such as medical record numbers and transaction IDs allow configuration for specific needs. Its General Purpose, Healthcare, and COVID-19 NLP lenses target different text types. Philter provides an HTTP REST API, a Java SDK, and an OpenAPI specification, and can be deployed privately or through AWS, Google Cloud, and Microsoft Azure marketplaces. The maker says it processes text in the customer’s environment rather than sending it to third parties, including in firewalled or air-gapped setups. Redaction requests are recorded in a hash-chained audit log that can be queried and exported to CSV. Detection is probabilistic, so the maker advises checking results against an organization’s data before production use. The open source toolkit has community support; commercial licenses include direct support. Philter Desktop commercial use costs 100.00 USD per year per user.
Who it is for
Philter suits teams in healthcare, finance, legal, government, and AI that need redaction in text workflows. It may fit organizations that need customer-controlled deployment and configurable detection policies.
What is good
- Offers multiple actions for detected text.
- Supports custom dictionaries and identifier patterns.
- Can run in firewalled or air-gapped environments.
- Audit log can be queried and exported to CSV.
What to know first
- Detection is probabilistic and requires validation.
- Open source toolkit support is community-based.
- Commercial desktop plan costs 100.00 USD per year per user.
Verdict
Philter offers configurable redaction with deployment options that keep processing in a customer environment. Validate detection against your own data before relying on it in production.
Philter plans and pricing
All plansCompared on document redaction software
- Free plan
- Yesphilterd.ai
- Deployment
- hybridphilterd.ai
- OCR redaction
- Yesphilterd.ai
- Automated detection
- Yesphilterd.ai
- Batch processing
- Yesphilterd.ai
- Audit trail
- Yesphilterd.ai
- Input formats
- PDF, DOCX, XLSX, CSV, TXT, RTF, EML, MSGphilterd.ai
Facts
- What it does
- Philter is open source software that redacts personally identifiable and protected health information from text.philterd.ai · 2 Oct 2026
- Detection and actions
- It detects many entity types and lets users choose to mask, encrypt, replace with synthetic values, drop, or pass them through.philterd.ai · 2 Oct 2026
- Policies and custom entities
- Users can define policies, custom dictionaries, and identifier patterns such as medical record numbers and transaction IDs.philterd.ai · 2 Oct 2026
- Models
- Philter offers General Purpose, Healthcare, and COVID-19 NLP lenses for different text types.philterd.ai · 2 Oct 2026
- API and SDKs
- Philter provides an HTTP REST API, a Java SDK, and an OpenAPI specification for generating clients in other languages.philterd.ai · 2 Oct 2026
- Cloud deployment
- Philter can be deployed in a private environment or through AWS, Google Cloud, and Microsoft Azure marketplaces.philterd.ai · 2 Oct 2026
- Data handling
- The maker says Philter runs in the customer’s environment and does not transmit text to third-party services; it can run in a firewalled or air-gapped environment.philterd.ai · 2 Oct 2026
- Open source and security
- The maker says its products are released under Apache 2.0, with source code publicly available on GitHub for inspection and self-building.philterd.ai · 2 Oct 2026
- Accuracy limitation
- Detection is probabilistic, and the maker advises validating results against a customer’s own data before relying on them in production.philterd.ai · 2 Oct 2026
- Support
- The open source toolkit includes community support through documentation and GitHub issue trackers, while commercial licenses include direct support.philterd.ai · 2 Oct 2026
- Intended users
- The maker describes Philter for healthcare, finance, legal, government, and AI workloads, including teams adding redaction to APIs and data pipelines.philterd.ai · 2 Oct 2026
- Company history
- Philterd says it was founded in 2017 by Jeff Zemerick.philterd.ai · 2 Oct 2026
Company
- Founded
- 2017philterd.ai · 23 Sept 2026
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Sources
- philterd.ai/philter/· checked 2 Oct 2026
- philterd.ai/security/· checked 2 Oct 2026
- philterd.ai/support/· checked 2 Oct 2026
- philterd.ai· checked 2 Oct 2026
- philterd.ai/company/· checked 2 Oct 2026
- philterd.ai/philter-desktop/· checked 2 Oct 2026
- philterd.ai/pricing/· checked 2 Oct 2026