Startup investor writing
Brazilian founders draft English or Portuguese investor updates between calls.
South America · Available now
Voice-to-Text in Brazil
Zahvox is a free, browser-based voice-to-writing tool for people and teams in Brazil. No signup, no download — open the tool, grant microphone access once, and start speaking.
Free No signup Runs in your browser Used weekly in Brazil
Zahvox in Brazil at a glance
Native Web Speech API
Speech engine
90%+
Accuracy (clear speech)
~3x faster
Speaking vs typing
Not required
Signup to try
How Zahvox works in Brazil
Chrome on Android dominates the Brazilian market, followed by Chrome on Windows on desktop. Both fully support the Web Speech API. To start, open /tool in a supported browser and grant microphone permission once. Live transcription shows your words appearing as you speak, with a small delay while the browser processes each phrase. You can pause, resume, and edit inline — Zahvox is a writing surface, not a passive recorder.
The mic icon stays visible so you always know when the tool is listening. Your audio never touches a Zahvox server: the browser sends short audio snippets to its own speech engine (usually Google for Chrome and Edge, Apple for Safari) and returns text. When you close the tab, nothing is stored. You can copy the final text with one click or download it as a plain text file.
- 1Open /toolChrome, Edge, or Safari on any device works.
- 2Grant mic accessOnce per browser — Zahvox never records or stores audio.
- 3Speak clearlyWords appear live as you talk, with pause and resume controls.
- 4Edit, copy, or downloadClean the draft, then move it into any app you use.
Language and accent support in Brazil
Primary language today: English (Business) — Portuguese on roadmap.
Business English transcribes reliably at normal pace. Native Brazilian Portuguese dictation depends on your browser's Portuguese speech engine when you set your browser language to Portuguese (Brazil).
On the roadmap for Brazil: Portuguese (Brazilian). To try a different language today, switch your browser or system language and the underlying Web Speech engine will use its matching model where available.
Cities in Brazil where people use Zahvox
Brazil is a growing Latin America audience for Zahvox, with weekly use from Sao Paulo founders, Rio agencies, and freelancers across the country. Zahvox works anywhere with a modern browser and a stable internet connection, so it runs the same in the largest metros as in smaller cities and towns. A short list of cities with the strongest usage today:
- Voice-to-text in Sao Paulo
- Voice-to-text in Rio de Janeiro
- Voice-to-text in Brasilia
- Voice-to-text in Salvador
- Voice-to-text in Fortaleza
- Voice-to-text in Belo Horizonte
- Voice-to-text in Manaus
- Voice-to-text in Curitiba
- Voice-to-text in Recife
- Voice-to-text in Porto Alegre
Industries and sectors in Brazil that use Zahvox
Zahvox is built for daily writing — not for regulated content, patient records, or confidential financial data. The sectors below use it most in Brazil, always for internal drafts and non-sensitive customer communication.
- Technology and startups
Sao Paulo and Florianopolis founders draft investor updates and product notes.
- Digital marketing agencies
Rio and Sao Paulo agencies capture campaign briefs and client updates by voice.
- E-commerce and D2C
Sellers write product listings and customer replies faster.
- Freelance services
Workana and Upwork sellers draft client proposals and replies by voice.
- Content creation
YouTubers and podcasters speak script drafts and hooks before recording.
- Higher education
USP, Unicamp, and UFRJ students dictate essay drafts.
Common use cases in Brazil
Most Zahvox users write the same handful of things every week: emails, updates, notes, and short drafts. The mini-sections below describe how that plays out in Brazil specifically.
Agency client comms
Digital agencies talk out client emails and campaign notes between Zooms.
E-commerce product copy
Store operators dictate product descriptions faster than typing.
Freelance proposals
Freelancers write Workana and Upwork proposals faster with voice.
Creator script drafts
YouTubers and podcasters talk out the first version of a script before editing.
Zahvox vs. voice-to-text alternatives available in Brazil
Brazil users have three main options for turning voice into writing today. None of them are wrong — they just solve different problems. Here is an honest comparison so you pick the right tool for the job.
| Tool | Best for | Cost | Signup |
|---|---|---|---|
| Zahvox | Solo writing — emails, notes, drafts | Free core tool | Not required |
| Built-in OS dictation | Typing into any app quickly | Free with your OS | System account |
| Browser-based free tools | Similar solo writing use | Free | Varies |
| Paid meeting transcription | Multi-speaker meeting notes | Subscription | Account required |
Zahvox's honest edge is the writing surface — a clean workspace built for editing what you just said, with zero signup and zero install. For multi-speaker meeting notes, use a dedicated meeting tool. See a longer breakdown on the alternatives and compare pages.
FAQ — Voice-to-text in Brazil
Does Zahvox work in Brazil?
Yes. Zahvox is fully available across Brazil. The free web tool works in Chrome on Android and Windows, plus Edge and Safari, with no signup and no local install required.
Can I dictate in Portuguese with Zahvox?
You can dictate in Brazilian Portuguese today by setting your browser and system language to Portuguese (Brazil). Chrome and Edge use a Portuguese speech engine in that case. First-class Portuguese support is on Zahvox's roadmap.
Is Zahvox LGPD compliant in Brazil?
Zahvox's free tool never uploads or stores your audio on our servers, so most controller obligations under the LGPD do not apply for personal use. Businesses handling client voice should still confirm their own ANPD-related duties.
Is voice-to-text accurate?
Yes, for clear speech at a normal pace. Zahvox uses your browser's built-in speech engine, which reaches 90%+ accuracy for common accents in quiet rooms. Accuracy drops in loud rooms, with heavy code-switching, or with rare technical terms.
Does voice-to-text work offline?
No. Zahvox's free web tool relies on your browser's Web Speech API, which sends audio to the browser vendor's speech servers. An offline mode is not part of the free browser tool. Native offline dictation is on the roadmap for future clients.
Is my voice data private when using an online voice-to-text tool?
Zahvox never uploads or stores your audio on a Zahvox server. Your browser handles the mic and sends short audio snippets to its own speech engine (usually Google for Chrome and Edge, Apple for Safari), which returns text. No account and no recording are created.
What is the difference between voice-to-text and dictation?
Dictation is a broad term for speaking your writing. Voice-to-text is the technology that converts speech into written characters. Zahvox is a voice-to-text web tool built for writing — not for transcribing meetings with multiple speakers.
Do I need to install anything to use Zahvox?
No. Zahvox runs entirely in your browser. Open the tool page, grant microphone access once, and start speaking. There is nothing to install, no signup, and no download for the current free experience.
Which browsers support voice typing?
Chrome, Edge, and Safari support the Web Speech API that Zahvox uses. Firefox has limited support. On mobile, Chrome on Android and Safari on iOS both work. You need microphone permission granted once for the page.
Can I add punctuation by voice?
Yes. Say the punctuation word — for example, 'comma', 'period', 'question mark', or 'new line'. Different browsers handle punctuation commands slightly differently, so a quick edit pass at the end is normal for polished writing.
Is Zahvox really free?
Yes. The current web tool is free with no signup, no time limits, and no credit card. Future advanced features (AI cleanup, saved history, templates) will be part of paid tiers, but the core voice-to-text tool stays free to use.
How is Zahvox different from Google Voice Typing or Apple Dictation?
Built-in OS dictation is a system feature that types into any app. Zahvox is a dedicated writing surface with editing tools, one-click copy, and download — plus a clean workspace for polishing the draft, not just capturing it.
How is Zahvox different from Speechnotes or Otter.ai?
Speechnotes is the closest browser-based free alternative. Otter.ai is a paid meeting transcription tool with speaker labels and account storage. Zahvox is a free, no-signup writing surface — best for solo writing, not multi-speaker meetings.
Can I export or download the transcribed text?
Yes. You can copy the text with one click or download it as a plain text file directly from the tool. Nothing is stored on Zahvox's servers, so the copy or download is your only record of the session.
Does Zahvox work for meetings with multiple speakers?
No. Zahvox is built for one voice — your writing. For multi-speaker meeting transcription with speaker labels, use a dedicated meeting tool. Zahvox is faster than those tools when the goal is your own draft.
Who built Zahvox, and how your voice is handled
Zahvox is built by Hussain Jatoi and launched by Hussainjatoi.com. The company is small on purpose — a real founder shipping a real tool. Read the about page for the full story and the roadmap for what is next.
Honest privacy note
Zahvox's free web tool uses the browser's Web Speech API. That means short audio snippets are sent from your browser to your browser vendor's speech servers (Google for Chrome and Edge, Apple for Safari) so it can return text. Zahvox itself never receives, stores, or replays your audio. No account is created for using the tool, and closing the tab removes the transcript. This is different from claiming "100% offline" — we would not tell you that when the browser engine is doing the recognition work.
Brazil's Lei Geral de Proteção de Dados (LGPD), overseen by the ANPD, treats voice recordings as personal data when they identify someone. Zahvox's free tool never uploads or stores audio on our servers, which keeps personal use simple.
Last reviewed: November 2026.