Freedom251 › Live Captioning Software
SyncWords
by SyncWords
What SyncWords is
SyncWords is a cloud platform for live and on-demand captioning, subtitling, and dubbing. SyncWords Live creates same-language captions, translated subtitle tracks, and dubbed audio from live sources. It accepts SRT, RTMP, HLS, and CMAF streams, and supports 100 languages, subtitle translation, AI dubbing, voice cloning, and review workflows. Service teams can configure ASR dictionaries, translation glossaries, and pronunciation rules. The Live API provides programmatic controls, scheduling, webhooks, and multiple language outputs in one call. Integrations include AWS Elemental, Zoom, Microsoft Teams, Adobe Connect, YouTube Live, LinkedIn Live, Vimeo, Brightcove, Dacast, and PheedLoop. The service is available via web and API. Annual prepaid plans start at $1,620 a year, with a free trial session available on request; there is no free plan. Hours are counted separately for each language and output. Enterprise security information describes encryption in transit and at rest and HIPAA- and FERPA-ready facilities. Standard support is listed for weekdays, while Broadcast and Enterprise plans include 24/7 monitoring and a dedicated success manager.
Who it suits
It suits broadcasters, event organizers, streaming vendors, educational institutions, government organizations, and other teams producing live or on-demand content. Organizations needing multiple language outputs or API control may find its stated tools relevant.
What it does well
- Supports 100 languages and translated subtitle tracks.
- Accepts SRT, RTMP, HLS, and CMAF inputs.
- API includes scheduling, webhooks, and service controls.
- Includes review workflow, AI dubbing, and voice cloning.
What to know first
- No free plan is available.
- Usage hours are charged per language and output.
- Annual prepaid plans start at $1,620 a year.
Limits
There is no free plan. The least expensive listed annual plan is Standard — 60 hours at $1,620 a year; hours are charged per language and per output.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Standard — 60 hours | Prepaid package valid for one year; hours charged per language and output · 60 hours per year | $1,620 a year |
| Standard — 500 hours | Prepaid package valid for one year; hours charged per language and output · 500 hours per year | $11,250 a year |
| Advanced — 2,500 hours | Prepaid package valid for one year; hours charged per language and output · 2,500 hours per year | $37,500 a year |
| Advanced — 9,000 hours | Prepaid package valid for one year; hours charged per language and output · 9,000 hours per year | $81,000 a year |
| 500 hours / year — Standard | prepaid annually · 500 output hours · full SyncWords Live access · enterprise features · captions, subtitles and audio translations · billed per language and output | $11,250 a year |
| Standard tier — 500 hours / year | 500 hours / year; rate $22.50 / hour · Hours charged per language and per output · Standard support Mon–Fri, 8 AM–8 PM ET | $11,250 a year |
| Standard tier — 60 hours / year | 60 hours / year; rate $27 / hour · Hours charged per language and per output · Standard support Mon–Fri, 8 AM–8 PM ET | $1,620 a year |
| 60 hours / year — Standard | prepaid annually · 60 output hours · full SyncWords Live access · enterprise features · captions, subtitles and audio translations · billed per language and output | $1,620 a year |
The first 8 of 14 plans, as syncwords.com lists them, read 20 Sept 2026. The maker's own page has the final word. Every plan
Getting started
- Visit https://www.syncwords.com/.
- Choose web or API access for your workflow.
- Contact SyncWords to request a trial session for your workflow.
- Select an annual plan with the required hours and account for charges per language and output.
Verdict
SyncWords combines live captions, translated subtitles, and dubbing with API controls and a broad list of integrations. Check the per-language, per-output billing and annual plan terms against your expected usage.
Questions
Is there a free plan?
No. SyncWords offers a paid service and says prospective customers can contact it to request a trial session.
What does SyncWords cost?
Annual plans start at $1,620 a year. The Standard — 60 hours plan is $1,620 a year.
How are usage hours counted?
Hours are billed per language and per output, so each caption, subtitle, or dub output uses its own hours.
Which platforms can I use?
SyncWords is available through the web and API.
What integrations are named?
Integrations include AWS Elemental, Zoom, Microsoft Teams, Adobe Connect, YouTube Live, LinkedIn Live, Vimeo, Brightcove, Dacast, and PheedLoop.
Who makes SyncWords?
The maker is SyncWords, founded in 2012 and headquartered in New York, United States.
Facts from SyncWords's own pages
- AI dubbing
- SyncWords Vocalics creates AI voice translations and dubbed audio in another language while preserving the program workflow. · syncwords.com, 21 Oct 2026
- API authentication
- Live and VOD Express APIs share bearer-token credentials created from an organization key pair. · docs.syncwords.com, 21 Oct 2026
- API documentation limit
- The Live API reference is described as complete, while broader Live API guides are still being written and expected to expand. · docs.syncwords.com, 21 Oct 2026
- API examples
- The API documentation demonstrates authentication calls in cURL, Python and Node.js and explains 401 and 403 responses. · docs.syncwords.com, 21 Oct 2026
- Automation
- The Live API supports programmatic service control, scheduling, webhooks, and multiple language outputs per call. · syncwords.com, 5 Oct 2026
- Azure Marketplace capabilities
- The Azure listing describes web-based Pro Caption Editor and Sync Editor tools, collaborative roles and permissions, public API access, dictionaries, glossaries and more than 60 export formats. · azuremarketplace.microsoft.com, 21 Oct 2026
- Company history
- SyncWords says it was founded in 2012. · syncwords.com, 5 Oct 2026
- Company profile
- LinkedIn lists SyncWords as a privately held New York company founded in 2013 with 11–50 employees. · linkedin.com, 21 Oct 2026
- Delivery protocols
- Documented live delivery paths include SRT/MPEG-TS, CMAF ingest, HLS and RTMP, with outputs such as EIA-608, WebVTT, DVB, Teletext and TTML. · syncwords.com, 21 Oct 2026
- Dubbing providers
- Documented dubbing providers include Deepdub, MultiVoice, Azure, Google, Amazon Polly and Sarvam, with voice cloning available through Deepdub. · docs.syncwords.com, 21 Oct 2026
- Free plan
- No · syncwords.com, 20 Sept 2026
- Funding disclosure
- Crunchbase shows one debt-financing round but obscures the amount and does not publish a total funding figure. · crunchbase.com, 21 Oct 2026
- Headquarters
- New York, United States · syncwords.com, 28 Sept 2026
- Integrations
- Named integrations include AWS Elemental, Brightcove, Dacast, LinkedIn Live, Vimeo, YouTube and PheedLoop; the integrations page also describes Zoom, Teams, Adobe Connect and 100-plus event platforms. · syncwords.com, 21 Oct 2026
- Language coverage
- The company says its captioning and translation services support more than 100 languages. · g2.com, 21 Oct 2026
- Legal entity and founders
- Crunchbase lists the legal name as Syncwords Inc and names Aleksandr Dubinsky, Ashish Shah, Nobuhiro Seki and Sam Cartsos as founders. · crunchbase.com, 21 Oct 2026
- Limit: caption delay
- A Trustpilot reviewer reported live subtitles appearing about 20 seconds after the audio during an event. · trustpilot.com, 21 Oct 2026
- Limit: terminology accuracy
- A G2 reviewer says AI captions would benefit from a larger glossary for specialized terms, even though current quality was considered good. · g2.com, 21 Oct 2026
- Limit: translation timing
- A G2 reviewer says translated captions can drift somewhat out of sync because translated languages do not map one word for one word to the source speech. · g2.com, 21 Oct 2026
- Live API controls
- The REST Live API can create services, start and stop them, change outputs, schedule events, query status and usage, and receive webhook events. · syncwords.com, 21 Oct 2026
- Live captions
- SyncWords Live produces same-language captions for live broadcasts, streams and events. · syncwords.com, 21 Oct 2026
- Live outputs
- SyncWords Live produces same-language captions, translated subtitle tracks, and Vocalics dubbed audio from live sources. · syncwords.com, 5 Oct 2026
- Live sign language
- The product line includes photorealistic live sign-language output composited into a stream through its Signapse partnership. · syncwords.com, 21 Oct 2026
- Location
- The site describes SyncWords as built in New York. · syncwords.com, 5 Oct 2026
Where SyncWords stands on Freedom251
- Live Captioning Software#8 of 20
- Video Localization Software#19 of 23
- Video Translation Software#20 of 22
- AI Video Caption Generators#92 of 99