What EZTitles Development Studio does

EZTitles Development Studio Ltd., founded in 2003 and headquartered in Sofia, Bulgaria, develops professional subtitling and closed captioning software for the global audiovisual localization industry. The company operates a product-led model with three core offerings: EZTitles (desktop subtitling/captioning software with frame-precise shot-change detection and support for 100+ industry formats), EZConvert (subtitle/caption format conversion available as desktop GUI and developer REST API via EZConvert Cloud), and enterprise license distribution services (Online License Manager and License Manager) that enable globally distributed teams to operate 24/7. Underlying technology combines proprietary editing infrastructure with integrations to leading third-party AI providers — AssemblyAI and Microsoft Azure for speech-to-text, DeepL and Google for automated translation, and OpenAI's ChatGPT for proofing/rewriting — accessed via a pay-as-you-go token model through the Subtitling Assistant add-on.

The company monetizes through a multi-modal revenue stack: perpetual lifetime licenses, prepaid subscriptions (minimum 30 days), installment payment plans (12/24/36 months) for purchases above €1,000, enterprise OLM/LM annual subscriptions, and usage-based AI token consumption. Distribution is primarily direct via the eztitles.com storefront and self-serve downloads, with field sales engaged for enterprise deployments. The customer base spans major global broadcasters and streamers (Netflix, BBC, Disney, HBO, Warner Bros Discovery), production studios (Sony Pictures, Paramount, MGM), and roughly two dozen named localization agencies (Transperfect, Iyuno-sdi, Deluxe, VITAC, VSI, Pixelogic, among others), reaching nearly 4,000 organizations and individuals across more than 20 years.

Operationally, EZTitles has remained privately held and founder-led with no disclosed institutional funding, no M&A activity, and no parent company. It maintains a small team (11–50 employees) while sustaining a continuous product release cadence — most notably a major 7.0 platform release in March 2025 introducing integrated AI translation and ChatGPT assistance, and a 7.1 release in March 2026 adding EVS (encrypted video storage/sharing on customer-owned AWS S3 or Azure Blob). GDPR compliance is maintained at the corporate level, while broader certifications (SOC, FedRAMP, PCI DSS, HIPAA, HITECH, ISO 27001) are inherited through Azure Speech dependencies rather than held independently.

Name

EZTitles Development Studio

Legal name

EZTitles Development Studio Ltd.

Website

https://eztitles.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

EZTitles Development Studio is a Bulgarian software firm that builds professional subtitling, captioning, and format-conversion tools for global broadcasters, streaming platforms, and localization agencies, augmented by AI-powered speech-to-text, translation, and proofing via partner models.

Ownership category

akta.pro rank

Product category

Subtitling and Captioning Software

NAICS

Motion Picture and Video Industries (5121)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Subtitling & Captioning Services (Timed Text, SDH/CC) (MPAHAFAA)

akta.pro secondary industry

Localization Technology & Automation (TMS, Subtitle Tools, MT/AI, Speech-to-Text) (MPAHAFAH)

Keywords

• Subtitling software
• Captioning software
• Subtitle conversion
• Audiovisual localization
• Closed captioning

Headquarters

HQ city

Sofia

HQ country

Bulgaria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations

Revenue model

1. Software Licenses (Regular/Lifetime): One-time perpetual license purchase for EZTitles Essentials, Standard, and Ultimate, as well as EZConvert GUI and Professional.
2. Prepaid Subscriptions: Monthly prepaid subscriptions (minimum 30 days) for EZTitles and EZConvert products. Non-refundable once activated.
3. Installment Payment Licensing (IPL): 12, 24, or 36 monthly installment plans for purchases over 1,000 EUR, combining license fee with support package.
4. OLM/LM Enterprise Services: Annual subscription for Online License Manager and License Manager services enabling distributed license deployment across organizations. Includes hosting and support package renewals.
5. Subtitling Assistant (AI Tokens): Pay-as-you-go service for speech recognition (ASR) and automated translation (AT). Requires purchase of minutes (ASR) or characters (AT) loaded into virtual wallet. Non-refundable tokens.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

EZTitles Development Studio develops and sells professional subtitling and captioning software for the audiovisual localization industry. Its core products are EZTitles (subtitles and closed caption creation for streaming, TV, digital cinema, DVD, Blu-ray), EZConvert (subtitle/caption conversion across 100+ industry file formats), and EZConvert Cloud API (a REST API for automated conversion). The suite is complemented by AI-powered add-ons (Subtitling Assistant for ASR and automated translation; ChatGPT Assistant for proofing and rewriting), EVS secure encrypted video sharing, and enterprise license management via OLM and LM.

Product overview

EZTitles Development Studio offers a suite of professional subtitling and captioning products. The core offerings are EZTitles (subtitling and closed captioning software) and EZConvert (subtitle conversion software), available as desktop applications with multiple editions. EZConvert is also offered as a REST API (EZConvert Cloud API) for developer integration. AI-powered capabilities are delivered through Subtitling Assistant (add-on for ASR and automated translation) and ChatGPT Assistant. EVS provides secure encrypted video storage and sharing for collaborative workflows. License distribution for enterprise teams is handled via License Manager (LM) and Online License Manager (OLM) services. The company also maintains legacy products including 3DTitles and discontinued plugins for Adobe Premiere, AVID, ProMedia Carbon, and Cambria FTC.

Differentiator

Problem solved

Functional benefit

Products and services

• EZTitles Professional subtitling and closed captioning software for Streaming Services, TV, Digital Cinema, DVD, and Blu-ray. Used by streaming platforms, broadcasters, localization agencies, production studios, and freelance subtitlers to create, edit, time, and export subtitles across 100+ industry file formats with frame-precise shot-change detection and AI-powered automation.
• EZConvert Professional subtitle and caption conversion software that supports all industry file formats. Enables fully automated subtitle and caption conversion via command line and Watch Folders with Quality Control. Used by localization agencies, broadcasters, and production studios for high-volume batch conversion and delivery preparation.
• EZConvert Cloud API Developer-friendly REST API for subtitle and caption conversion that integrates into customer systems. Enables full automation of conversions via command line and Watch Folders with Quality Control, with all data remaining under customer-controlled processing.
• Subtitling Assistant Pay-as-you-go AI-powered add-on service for EZTitles Essentials, Standard, and Ultimate that automates creation of Closed Captions (Pop-on and Roll-up), SDH Subtitles, and Master Translation Templates. Uses AssemblyAI or Azure Speech for speech recognition and DeepL or Google for automated translation. Tokens (minutes for ASR, characters for AT) are purchased and loaded into a virtual wallet.
• EVS (EZTitles Video Sharing) Secure encrypted video storage and sharing system for collaborative subtitling workflows. Videos are encrypted locally before upload, remain encrypted at rest in cloud storage, and can be played back directly inside EZTitles via secure authentication. Supports organization collaboration with role-based access (Account Admin, Content Provider, Regular Member) and Two-Factor Authentication.
• Online License Manager (OLM) Cloud-based annual subscription service that distributes purchased software licenses to globally distributed teams, enabling 24/7 collaboration. Hosting is provided via third parties such as Microsoft Azure, and end users receive a license registration file for a specific period and computer.
• License Manager (LM) Service for distributing purchased EZTitles and EZConvert software among different end users within an organization. Requires a minimum of 5 products under full price or the Installment Payment Licensing (IPL) program. A USB Hardware Key is used to issue licenses to end users.

Quantifiable outcome

• Nearly 4000 localization agencies, production studios, vendors, and freelancers have trusted EZTitles
• +1 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability6 records

Feature6 records

Partnerships

Five partnerships are on record, tiered core.

• AssemblyAIcoreTechnology or IntegrationAssemblyAI API handles speech recognition for the Subtitling Assistant's Audio Analysis feature. Audio files are stored temporarily on AssemblyAI servers during processing and deleted after analysis completion.
• Microsoft AzurecoreTechnology or IntegrationAzure Speech service is used as an alternative speech recognition engine for Subtitling Assistant. Also hosts OLM services. Azure Blob Storage available for EVS video storage. Azure Cognitive Services certified by SOC, FedRAMP, PCI DSS, HIPAA, HITECH, and ISO.
• DeepLcoreTechnology or IntegrationDeepL API handles automated translation for the Subtitling Assistant's translation feature. DeepL temporarily stores content for technical processing and does not use it for AI model training.
• GooglecoreTechnology or IntegrationGoogle Cloud Translation API handles automated translation as an alternative to DeepL. Uses Cloud Data Processing Addendum and does not use content for training purposes.
• FFmpeg ProjectcoreTechnology or IntegrationEZTitles uses FFmpeg libraries under LGPLv2.1 license for video processing and format conversion functionality.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Rev: AI- and human-powered transcription and captioning service with enterprise APIs and a freelancer marketplace. Competes on the same automated ASR-to-subtitle workflow and serves a comparable set of media and corporate customers.
• 3Play Media: Closed captioning, transcription, and subtitling services plus technology platform serving media, education, and enterprise. Overlaps with EZTitles' localization-agency and broadcaster customer base, offering a hybrid services-plus-software model.
• Trint: AI-powered transcription platform with built-in subtitle and caption export. Targets media, journalists, and enterprise content teams; overlaps with EZTitles on ASR-driven subtitle creation but competes via cloud-native delivery.
• Subtitle Edit: Open-source subtitle creation and conversion editor widely used by freelance subtitlers. Directly competes with EZTitles in the professional and prosumer authoring segment, particularly on price-sensitive individual and small-team buyers.
• CaptionHub: Cloud-based, collaborative subtitling and captioning platform targeted at broadcasters, OTT platforms, and localization teams. Competes with EZTitles' desktop + OLM workflow on the same enterprise customers with a browser-native delivery model.
• Aegisub: Open-source desktop subtitling editor with advanced styling and timing features. Competes in the same desktop authoring segment, particularly with technical subtitle creators and fan-sub communities overlapping EZTitles' freelancer base.

Broad incumbents

• VITAC: Large North American closed-captioning and accessible media services provider serving broadcasters and streamers. Shares EZTitles' enterprise media customer base and competes on captioning workflows, though primarily as a services business.
• Otter.ai: AI meeting-note and transcription platform with captioning/export features. Broader consumer/enterprise positioning than EZTitles but competes in the same AI-driven speech-to-text category for adjacent use cases.
• Smartling: Translation management platform with localization services for digital content. Competes with EZTitles' automated translation workflows at the broader enterprise localization layer rather than the specialist desktop subtitling niche.
• TransPerfect: Global localization and translation services giant that is both an EZTitles customer and a competitor through its media localization practice. Overlaps on subtitling, captioning, and translation services for the same enterprise media buyers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/eztitles
• YouTubeyoutube.com/@eztitlesdevelopmentstudio5221
• Facebookfacebook.com/eztitles
• LinkedInlinkedin.com/company/eztitles-development-studio-ltd

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about EZTitles Development Studio