FreeSubtitles.Ai

FreeSubtitles.Ai transcribes audio and video to text, with subtitle translation, downloadable .srt/.vtt/.txt outputs, free to start and API access.

Речь в текст Субтитры Транскрибация AI Переводчик

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Overview

FreeSubtitles.Ai is a web-based transcription and translation service for audio and video files. It lets users upload media, choose or auto-detect a source language, and generate text outputs without needing to install local software.

The product is positioned as free to start, with paid credits available for heavier use. The site says the service supports subtitles and translations, offers downloadable subtitle/text formats, and includes an API for programmatic access.

Core features

File upload for audio and video

Upload a video or audio file by drag and drop or file picker. The home page shows supported formats including MP4, MKV, MOV, MP3, WAV, and FLAC.

Language selection and auto-detection

Select the source language from a long list or use auto-detect. The interface lists 100 source languages for transcription.

Built-in translation workflow

Translate the same file into other languages during processing. The home page lists translation support for 91 languages, and the product pages say translation is included.

Subtitle and text exports

Download results in subtitle and text formats. The about page says outputs include .srt, .vtt, and .txt, with JSON also mentioned for transcription files on the paid-use page.

No-login free start

Use the service without creating an account or logging in. The about page describes the free experience as upload, transcribe, and download with no upfront payment or login required.

Developer API

Access an API for programmatic transcription, status checks, completion retrieval, and cancellation. The API documentation shows POST, status polling, and cancel endpoints.

Common use cases

Turn recordings into searchable text
Convert recorded meetings, interviews, or lectures into text for review, search, or editing without running a local transcription tool.
Generate subtitles for video content
Create subtitle files for videos by uploading media, selecting the source language, and exporting caption-ready results.
Transcribe and translate in one pass
Translate spoken content into another language while transcribing it, which is useful for multilingual publishing or review workflows.
Build programmatic transcription workflows
Automate transcription jobs from software, scripts, or internal tools using the API endpoints for upload, status polling, and cancellation.
Handle heavier transcription workloads
Use paid access when you need larger files, more processing time, or parallel jobs instead of the free-file limits.

Pros and Cons

Pros

Supports both transcription and translation in one workflow.
No account or login is required to start using the free service.
Provides multiple output formats, including subtitle and plain-text files.
Offers an API for automated use and custom workflows.
Paid use adds faster starts and higher processing limits.

Cons

Source pages do not provide a full public feature matrix, so some capabilities are only partially documented.
Free usage has size and duration limits, with the home page listing a maximum of 1 hour and 300 MB per file.

FAQ

How does FreeSubtitles.Ai work?

You upload an audio or video file, choose or auto-detect the source language, optionally select translation languages, and start transcription. The service then returns downloadable output files.

Does FreeSubtitles.Ai offer an API?

The API page shows POST /api for upload or download-based transcription, GET /api/{numberToUse} for status and completed files, and GET /api/{numberToUse}/cancel to stop a job.

What output formats are available?

Source pages mention downloads as .srt, .vtt, and .txt, and the paid-use page also references transcription files in JSON format.

What is the difference between free and paid use?

Free use is described as available without upfront payment or login, while paid use adds faster starts, higher limits, multi-file processing, translation expansion, and API access.

How is data retention handled?

The about page says uploads are encrypted, free media are deleted after 30 minutes, free transcripts after 24 hours, and paid media can be retained for up to one month unless deleted earlier.