Coreido Language
Translation, interpreting and localization in more than 30 languages, with full support in Japan.
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Meaningarrivesintact.
Since 2010, Coreido has translated, interpreted and localized between Japan and the rest of the world. We also produce documentaries, and we build the AI tools we use to make them.
One studio, three divisions
One team, the same knowledge of Japan, three complementary crafts.
Coreido Media
Video production and media in Japan: documentaries, shoots, broadcast support and advertising.
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Coreido AI Studio
A suite of AI tools to produce, enhance and localize your videos, tested first on our own productions.
Explore Coreido AI Studio
Sixteen years between Japan and the rest of the world
- Coreido founded by Nicolas Carteron
- 2010Coreido founded by Nicolas Carteron
- Certified professional translators in our network
- 300+Certified professional translators in our network
- Languages, with Japanese at the core
- 30+Languages, with Japanese at the core
- Native linguists per text: one translator, one reviewer
- 2Native linguists per text: one translator, one reviewer
Clients who trusted us with their projects
And also: Criteo · DotEmu · Toei Animation Europe · Uplause
TV productions we supported in Japan: M6 · Canal+ · France Télévisions · Eurosport · A.S.O. · Prisma Media
Coreido AI StudioFrom script to global audience.
Three tools to produce, enhance and take your videos worldwide
Coreido AI Studio is building a suite of tools for video production, post-production and multilingual localization. From footage research to lighting, from translation to dubbing: every tool is tested on our own productions first.
In development
B-Roll Hunter
Find the right footage.
A footage research assistant for documentary makers, YouTube creators and producers.
- Script analysis, passage by passage
- Archive research in Japanese and English
- Sources and rights documented for the edit
In design and development
Localization AI
Reach audiences worldwide.
A video localization module: script, voice, subtitles and graphics adapted to each market.
- Script translation and cultural adaptation
- AI-assisted multilingual dubbing
- Localized subtitles and graphics
In development
Relight Studio
Make every frame look professional.
An AI-assisted post-production tool to correct your image, rework the lighting and restore your footage.
- Automatic image correction
- Cinematic lighting for faces
- Footage restoration
Coreido AI StudioIn development
B-Roll Hunter: a shot for every line of your script
Built for Le Signal Nippon, B-Roll Hunter turns a documentary script into a footage research plan, and keeps track of the rights to every shot.
How it works
- Import your script as .txt or .docx.
- Each passage becomes a visual brief, quoted word for word.
- Search in Japanese and English, and log every source with its rights.
- If no real footage exists, prepare an AI reconstruction, labeled and ready to disclose.
AI is the last resort: never in place of an archive, never to show a real person.
Imported scriptB-Roll Hunter
| Script line | Shot type | Status |
|---|---|---|
| “The government district in Tokyo.” | Establishing shot | Stock footage |
| “Japan opens its first Imperial Diet.” | Historical archive | Authentic archive |
| “The reporter assigned to a politician,” | AI reconstruction | AI reconstruction, to disclose |
Follow our progress
B-Roll Hunter, Localization AI and Relight Studio are in design or development. Join the waitlist: we will keep you posted and write to you when we can offer early access.
Coreido Media · our channel
Le Signal Nippon
Our French-language YouTube channel explains Japan: economy, society, history and geopolitics. Every episode is written, sourced and edited by the Coreido team.
It is also our lab: every Coreido AI Studio tool is first used in real production there, before we offer it to clients.
- subscribers
- 5,700subscribers
- videos published
- 257videos published
- views
- 285,000views
YouTube figures, October 2026.
Testimonials
What our clients say
Nicolas is someone you want to work with. He is not only a translation expert, but also someone who develops a true interest in the fields he works on, and who wants to understand in depth what is at stake to deliver the best services. He adds to translation an interpretation of cultural gaps that makes conversations with him fascinating. He is also fun, direct and very honest. Highly recommended!
Uplause was seeking to offer interactive games on the stadium big screen of the Yomiuri Giants, a very popular Japanese baseball team. Using Coreido as our exclusive interpreter helped us get the deal, which was a big win for a foreign company.
Nicolas was a great help while we were filming a report in Japan for the program Enquête exclusive. He has an exceptional knowledge of the country and guided us wonderfully through its history and its iconic places. I warmly recommend him.
I have been working with Nicolas almost since the beginning of DotEmu back in 2008. Every year, Nicolas helped me tremendously to establish business relationships with key Japanese video game companies such as Square Enix, Irem or Success. I would strongly recommend Nicolas, especially for live interpreting in C-level business meetings.
Coreido saved us many times with hard deadlines, for Japanese to English and French legal translations! I highly recommend working with them.
His complete dual knowledge and expertise in French and Japanese made him a tremendous asset to the company. His deep understanding of Japanese culture and his professionalism were of great help in launching Criteo's business in Japan.
For several years I have directed the Tour de France Saitama Criterium in Japan, and I am lucky to have Nicolas at my side. Much of the operation's success comes from the high quality of his work.
Request a translation quote
Tell us the languages and the type of document, and attach your files if you have them. We will get back to you with a proposal.
More than 30 languages
With particular expertise in Japanese, and full support in Japan.
Prefer email? info@coreido.com
The team
Committed professionals, between France and Japan
Nicolas Carteron founded Coreido in 2010, having supported European companies in Japan since 2004. Around him: a small team and a network of more than 300 certified linguists. Coreido also runs the YouTube channel Le Signal Nippon and builds its own tools with Coreido AI Studio: its first three products, in design or development, are B-Roll Hunter for footage research, Localization AI for video localization and Relight Studio for image enhancement.
Nicolas Carteron
Founder and CEO
Graduate in Japanese from INALCO in Paris and former Japanese government scholarship holder. He founded Coreido in 2010 and now leads its three divisions.
Koji Okabe
Quality Manager
He joined Coreido in 2021, bringing eight years of experience in patents and Japanese-language editing.
Stéphanie Noh-Lero
Digital content and e-learning
She joined Coreido in 2017 to develop digital content and online training.
B-Roll Hunter
AI agent · Coreido AI Studio
Our footage research assistant, born for Le Signal Nippon. It turns a documentary script into a footage research plan, suggests what to show and where to find it, and keeps track of the rights for every shot.
Discover B-Roll Hunter
Tell us about your project
Email us, or use the full contact form.
Where to find us
An office in Hong Kong, a team that answers in Japanese, French and English, and online meetings everywhere else.
Office
Coreido Ltd., Hong Kong
909, 9/F, Prosperity Millenia Plaza663 King's Road, Quarry BayHong Kong
+852 5808 0647Japan support
Coreido Japan Support
We accept inquiries in Japanese, French and English. Feel free to write to us in Japanese.
Hong Kong · officeJapan · supportOpen in Google Maps
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