Everything a professional video subtitling platform should offer
Transcription, translation, review, and delivery — built from the ground up around the demands of professional subtitling.
Built for Uncompromising Quality
Every feature is designed to deliver subtitles that meet the highest professional standards.
Built-in AI Reviewer
It reads every subtitle and points out what's wrong. You decide what to fix.
Professional Subtitling Engine
Optimized for reading speed (CPS), timing precision, and typographic quality. A subtitle-first design because your subtitles deserve the same care as your content.
Real-time Collaboration
Your team, working together, anywhere. Multiple editors can refine translations simultaneously with live sync.
Multi-language QA
Reading speed, timing, line length and typography are checked before export, with dedicated typography rules for French and English.
Complete capabilities
Every tool you need, in one platform.
AI Translation
Translate your video's subtitles into any supported language, subtitle by subtitle, keeping the original's timing.
Real-time Collaboration
Multiple editors, translators, and reviewers work on the same project simultaneously with live sync. See cursors, comments, and changes in real time — no file juggling or version conflicts.
Burned-in Subtitles
Render subtitles directly onto the video file, choosing the font, color, position, and outline. Ideal for social uploads, museum displays, and festival submissions requiring locked subtitles.
Speaker Detection
Automatically identify and label each speaker throughout the video. Essential for documentaries, interviews, and corporate training content where attribution matters for readability and accessibility compliance.
Interactive Editor
A purpose-built editor with frame-accurate timing, waveform navigation, keyboard shortcuts, and split-screen preview. Designed for professional subtitlers, not adapted from a generic document editor.
Secure by Default
Encryption at rest and in transit, GDPR-compliant infrastructure hosted in Europe. Your content stays yours: never used for training, never sold.
Meet the AI Reviewer
Your last proofreader before delivery. You run it, it reads all your subtitles and flags grammar and translation slips right on the timeline. You approve each fix in one click.
See how the AI Reviewer worksFrequently asked questions
Everything you need to know about the Hello8 subtitling platform.
What makes Hello8 a professional video subtitling platform?
It's built for subtitles that go to broadcast, not for meeting notes. The editor, the QA checks, the export formats and the AI Reviewer follow the way post-production teams actually deliver, in 90+ languages.
How is the AI Reviewer different from human review?
The AI Reviewer reads all your subtitles and flags grammar, conjugation, translation, hesitation, glossary, and punctuation issues directly on the timeline. You approve or dismiss each suggestion in one click. Human review is a separate, optional paid add-on where an expert linguist refines subtitles for tone and cultural context.
Which subtitle and caption formats can I export?
SRT, VTT and ASS as sidecar files. Hello8 can also render burned-in subtitles directly into MP4 video for social, museum or festival delivery.
How many languages does Hello8 support?
Hello8 supports transcription and translation in over 90 languages. Typography rules are dedicated to French (guillemets, spacing) and English (curly quotes and apostrophes), and reading speed is set per project.
Who is Hello8 built for?
Four primary audiences: documentary filmmakers preparing content for festivals and distribution, corporate training and L&D teams producing global e-learning, video production agencies and language service providers managing client projects at scale, and museums and cultural institutions creating accessible multilingual exhibitions.
Can I try Hello8 before committing to a plan?
Yes. Hello8 has a free tier so you can experience the editor, AI transcription, and QA validation without friction. Paid plans unlock larger volumes and advanced features — see pricing for details.
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Your Data Is Safe With Us
GDPR-compliant, encrypted, hosted in Europe. We take data protection as seriously as subtitle quality.
GDPR Compliant
Fully compliant with EU data protection regulations. Your rights over your data are guaranteed.
Encrypted at rest and in transit
All data is encrypted in transit and at rest. Your content is never used to train models.
Hosted in Europe
Your files and data are stored in the European Union. A few processing steps use vetted providers outside the EU, described in our privacy policy.
Secure Infrastructure
Enterprise-grade cloud infrastructure with continuous monitoring, backups, and strict access controls.
Member of the Coalition for Content Provenance and Authenticity (C2PA)
Hello8 is a proud member of C2PA, the global standard for content provenance. We are committed to verifiable media authenticity, ensuring every piece of content can be traced back to its origin.
Ready to Create Perfect Subtitles?
Transcribe, translate into 90+ languages, then run the AI Reviewer on your subtitles.
Free to start, no credit card required. All you need is an account.