Pronto: Fast, on-brand AI translation Tool - no reformatting, no hassle.

Translating product, sales or internal documents for multiple markets? Cut time and costs with Pronto, the smart AI translation tool that sounds like your brand, translates in minutes and keeps every tag and document layout intact. Simple enough to run yourself.
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Why teams pick Pronto

Translating documents for international markets shouldn’t be time-consuming, expensive or a faff. Here’s how Pronto makes it easy.

Cut costs by 75%

Pronto automates the heavy lifting. Get instant AI translations with Auto Edit as standard and reuse your glossaries and past work so you’re not duplicating costs. Plus, Pronto comes with unlimited users so teams don’t rack up vendor costs.

Upload, translate, done

No more copy and paste. Upload your files, select the languages you need, get the translations back in minutes and export in the same format you uploaded. Pronto preserves tags, layout and document structure, so the translated content is ready to drop straight back into your tools.

Stay on-brand with smart customisation

You don’t have to set anything up, we do all the customisation for you. Share your approved terminology, tone of voice and market rules, and we’ll build them directly into Pronto so every translation follows your brand automatically. The result? Accurate, consistent, on-brand content in every language.
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Quality that improves every time you use it

This is where Pronto truly stands out. You can review translations directly inside Pronto using a simple, built-in review screen, no extra tools or editors needed. When you upload your final approved files, Pronto learns from your changes and updates terminology and style for the next project. Your setup gets smarter over time, with expert linguists available whenever you need extra assurance.
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Pronto handles all file types

Upload source files in any formats, and get translations back in minutes exactly as you provided them.

No conversions, no broken formatting, no fuss.

File types supported:
  • Word
  • Excel
  • PowerPoint
  • JSON
  • XML
  • XLIFF
  • HTML
  • IDML
  • TXT
  • SRT/VTT (subtitles)
  • Plus more on request.


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How it works

Pronto is super simple to use:

  1. Upload your files
  2. Choose your languages
  3. Get instant AI translations with Auto Edit applying your terminology, tone and market rules
  4. Review and edit directly in Pronto using the built-in review screen (optional)
  5. Download fully formatted files or request Pro Edit for a specialist linguist to review and polish your translation.
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Smart customisation that makes the difference

Pronto isn’t “raw” machine translation, it’s much cleverer than that.


Unlike free tools, we configure the AI technology around your brand and markets, so you get more accurate, brand-attuned translations you can rely on.


Here are some of the ways Pronto is built differently:


  1. Terminology & product names are baked in using glossaries.
  2. Tone, voice and style is set via AI prompts and market rules, such as formality levels and punctuation norms.
  3. Pronto uses previous translations & references so phrasing and structure feel familiar (and you don’t pay for the same translation twice).
  4. Pronto makes language-specific adjustments by market, for example Swiss French or Lat Am Spanish.
  5. Pronto was built by linguists as well as developers, and the team at Comtec bring decades of experience in translation across industries such as automation, manufacturing, L&D and marketing.
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Pronto use cases across your business

Pronto is a self-service tool that you use on-demand. With unlimited seats, one subscription covers your whole company, so everyone handles translations via one streamlined process.

Marketing & Sales

Campaigns, landing pages, product brochures, emails, sales decks and supplier documents.

Internal comms, HR & L&D

Company announcements, policy documents, e-learning and internal training, internal resource centers.

Product documentation

Release notes, guides, help content, structured files, product descriptions, vendor documents.

Support & Customer Service

Knowledge base articles, how-tos, help centre content, FAQs, delivery and return info.
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Security, compliance and expert support

Pronto is engineered for organisations that demand maximum speed without ever sacrificing control or safety.
  • Enterprise-Grade security:
    Benefit from leading security measures and guaranteed data privacy.
  • GDPR compliance:
    Your content is protected by full GDPR compliance.
  • Powered by proven expertise:
    Rely on a certified B Corp with over 40 years of localisation and quality management expertise.
  • Guaranteed rapid support:
    Receive assistance with a 1–2 hour support response during business hours and guaranteed next-working-day resolution outside office hours.
  • Integrated quality assurance (QA):
    Built-in review and QA tools ensure high standards and consistency across all your translated content.

Pricing and plans

Choose the plan that matches how much customisation you need.

Start with Pronto for fast, self-service translation, or upgrade to Pronto Pro or Enterprise for fully customised language models that we configure for you — including your terminology, tone of voice and market rules. Every plan includes unlimited users and transparent pricing.

ai translation tool pronto pro

ai translation tool pronto advanced

Feature Descriptions

* Continuous optimisation Pronto gets better every time you use it. When you upload your final approved files, Pronto automatically analyses the phrasing and style to refine future output, ensuring translations are consistently more accurate and brand-aligned.

** Pro Edit: Expert human review A specialist linguist checks, refines, and perfects your translation for tone, clarity, and accuracy. Ideal for important or customer-facing content. Available on request and billed per word.

*** Translation memory (TM) setup & management We build and maintain your TM, storing previously approved content so repeated phrases stay consistent and never need translating again. This significantly reduces costs and speeds up recurring translation projects.

**** Integrated review & feedback loop A simple review stage allows you to approve or edit translations. The system learns from these final, approved files, continuously updating preferences and style to ensure every project you approve helps improve the next one.

*****Regular expert optimisation We proactively fine-tune your Pronto setup regularly, refining prompts, terminology and style rules so your translations stay accurate, consistent and fully aligned to your brand. It’s hands-off for you, and ensures quality gets better with every project.

Ready for customisation?

If you already know the languages you need and want Pronto configured to your brand straight away, you can skip the free trial.

Just click Sign up now and share a few details – we’ll set up your fully customised Pronto package for you. No sales call needed, and we’ll take care of all the configuration.

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Got questions about Pronto? This FAQ answers the most common queries we hear from users, but if you don’t spot what you’re looking for, just drop us a line and we’ll be happy to help.

What is Pronto?

Pronto is Comtec’s self-service customised machine translation tool, designed for businesses that require fast, secure, and cost-effective multilingual content.

It combines advanced AI with your brand’s tone of voice and terminology, ensuring that your machine-translated content receives a brand-specific round of editing as standard, called Pronto Auto Edit, with no extra charge.

If your content requires a bit of extra attention, you can submit it for optional human review via Pronto Pro Edit.

Who is Pronto for?

Pronto is ideal for organisations creating content at scale, including HR, L&D, customer support, product and marketing teams. If you’re working across multiple markets and need consistent multilingual communication without long delays or high agency costs, Pronto is a perfect fit.

What makes Pronto different from other AI translation tools?

Pronto can be fully customised to your brand. That means:

  • It learns and applies your tone of voice and preferred terminology
  • It references any glossary or style guide
  • Local nuances and language variants are supported (e.g. Canadian French vs. European French)
  • Market-specific expectations can be customised, such as formality levels for Spanish, for example, or punctuation norms

These customisations are built into Pronto’s Auto Edit feature, meaning the default output has always been through one round of edits to suit your audience.

How does Pronto work?

Using Pronto is quick and easy:

  • Enter the Comtec client portal (for existing clients, use your regular client portal login details; new clients will be issued login and password details upon sign-up).
  • Go to the Pronto area in your dashboard.
  • Upload your files to be translated.
  • Select the source and target languages.
  • Pronto generates an AI translation and automatically applies your brand preferences with Auto Edit.
  • Download your translated files or submit them for optional human review (Pronto Pro Edit) if needed.

You’ll receive an email alert as soon as your translation is ready to download.

What’s the difference between Auto Edit and Pro Edit?

Pronto Auto Edit (included as standard): This AI-enhanced post-editing layer improves fluency, clarity and tone using your brand-specific settings.

Pronto Pro Edit (optional): This adds a second layer of human review by a professional linguist. It’s ideal for content where nuance, sensitivity or accuracy is critical—such as customer comms or legal documents.

What kind of content is Pronto best for?

Pronto is well-suited to both internal and external content, including:

  • Training and onboarding materials
  • Internal communications with HQ or remote teams
  • RFP and bidding/tender documents
  • Internal policies and HR documentation
  • FAQs, customer support articles and knowledge base content
  • Product descriptions and technical documentation
  • Marketing emails, press releases and campaign content
  • Legal and procurement documentation where clarity and tone matter

Which languages are supported?

Pronto supports more than 30 languages, including all major European, Asian and right-to-left languages. Specific language variants are also available, for example, Brazilian Portuguese or Mexican Spanish. We can add additional languages, depending on your subscription.

Don’t see a language you need? Just ask! We’ll be happy to look into it for you.

What file formats are supported?

Pronto supports all standard editable formats, including:

  • Word, Excel, PowerPoint
  • HTML, XML, JSON, TXT
  • XLIFF, IDML, CSV, SRT

If you have a file type other than the ones we support, please let us know, and we will confirm its compatibility.

How fast is it?

Translations are typically ready within minutes, depending on file size. You’ll receive an automated email once your file is complete and available for download.

If you request Pro Edit, a member of the Comtec team will be in touch ASAP to give you a predicted turnaround time and a quote.

Is my content secure?

Yes. We designed Pronto with data security and privacy in mind.
Your content is never shared with public AI models. All processing takes place in a secure, GDPR-compliant environment, and we’ll support any internal compliance requirements you may have.

What support do you provide?

Comtec provides complete onboarding, training and setup support, including:

  • Uploading and configuring your glossaries and language assets
  • Tailored training sessions (onsite or remote)
  • Prompt engineering to align AI output with your brand
  • Ongoing optimisation and support from our UK-based team

No prior localisation or technical experience is needed; we manage everything for you.

Can we test it before committing?

Yes. We offer a free three-month trial for one language, so you can test Pronto on real content before making a broader commitment.

How much does it cost?

Plans start from £375 per month, depending on your language and usage requirements.

There are no hidden fees or complex tiers, and for a limited time, your first month is free when you sign up for a three-month plan.

What is the difference between Pronto and Pronto Pro?

Both Pronto and Pronto Pro provide instant access to fast, high-quality AI translation across our full 30-language offering. The key difference lies in the level of customisation. Pronto (Standard) is trained at a general language level, delivering accurate and high-speed results, making it ideal for high-volume, general content, or as a cost-effective alternative to raw machine translation.

Pronto Pro, however, adds granular customisation in up to five languages of your choice. This means we configure the AI to your specific brand, applying tailored terminology, tone of voice, and workflows to ensure maximum consistency in your key markets. While you can still use the standard Pronto for the remaining languages, the advanced customisation of the Pro tier only applies to your 5 chosen languages.

Do you keep my document layout and tags?

Yes. Pronto is engineered to retain formatting and tags, so exported files drop straight into your workflow without rework.

Can we start without speaking to sales?

Absolutely. Start the free trial to try it yourself. When you’re ready to roll out, choose Sign up and we’ll configure Pronto using the details you provide – no meeting required.

Hand-picked global teams crafted for every specialty
With over 4000 linguists worldwide, we’re committed to delivering high-quality translations within your timeline. Our dedicated team ensures fast turnaround times, without compromising on accuracy or quality.