Built for the computer on purpose: big screen, keyboard, and voice notes turning into text right next to the chat. You read in seconds and reply on time — and the person on the other side gets a more attentive answer.
📤 Send the link to my computerOpens WhatsApp — pick your own "You" chat or send it to a colleague. On the computer it is one click to install.
On phones, browser extensions are not available — not ours, not anyone's. Keep scrolling to see everything ZapVox does. Why on the computer? →
ZapVox transcribes, translates and summarizes WhatsApp Web voice messages in seconds — and also searches inside them, schedules messages and files and keeps notes per contact. Right inside the chat, no other app. The extension for people who work through WhatsApp.
✔ Verified publisher — Google · ⭐ Approved by Google · Free with no expiry date · 7-day Pro trial, no card
None of it is your fault. It is the voice message arriving at the wrong moment.
It lands between two appointments — exactly when you have 40 seconds, not 6 minutes.
You are somewhere you cannot play audio. And that audio is the one thing that needs an answer now.
The amount, the address, the time — buried in two minutes of talking. Rewind, listen, rewind again.
That important voice note from last week, in a conversation you cannot place. Audio is not searchable.
How many voice messages do you get a day? Multiply by one minute. That is the time you get back.
One click on the Chrome Web Store. Sign in with Google, Microsoft or email and it works right away — 7 days free!
A "Transcribe" button automatically appears next to every voice message — you don't have to do a thing.
The text shows up in seconds right inside the conversation. Copy, translate or summarize with one click.
Installing takes 5 seconds and asks for no card. If you don’t like it, uninstall in 2 clicks.
📥 Install free on ChromeAlso available on Edge and Firefox
If you work through WhatsApp, voice messages arrive all day — and each one asks for a minute you do not have. ZapVox turns them into text, records and action, without leaving the conversation. Four scenes from an ordinary day:
No clicks: ZapVox notices the new audio and writes the text under it in seconds — including in conversations you are not looking at. You answer in one line and move on.
Automatic transcription · every planA group, a negotiation, a patient who sent six audios in a row. Instead of scrolling all the way up, you ask for the summary of the whole chat — and decide what deserves attention now.
Whole-chat summary · Starter, Pro and TrialAudio cannot be searched — transcriptions can. Type a word and ZapVox shows which conversations it appeared in, grouped by person, and opens the chat at the exact spot.
Search inside audios · every planText, photo, PDF or video: you prepare it when you remember and ZapVox delivers at the set time — after checking twice that the open chat is the right one. If it cannot prove it, it does not send.
Scheduling with files · every planAnyone who tries it with a real audio gets it in five seconds.Free install, no card. Every feature open for 7 days; after that, Free continues.
📥 Install free on ChromeTranscribing is where it starts. ZapVox also translates, summarizes, schedules messages and files, reminds, keeps notes, searches and shields your screen — all inside WhatsApp Web, without opening another app.
ZapVox detects a new voice message and transcribes it on its own — no click needed. The text appears under the message in seconds, in English, Portuguese, Spanish or whatever language arrives.
Audio in Portuguese, Spanish, German? You read it in your language, with one click or automatically, right under the transcription.
A 6-minute audio becomes the key points in a few lines. You decide whether it is worth listening — it almost never is.
Beyond the words, the tone: worried, satisfied, in a hurry. Useful when several audios arrive and you need to decide what to answer first.
Back after hours away? Ask for the day's digest, or the summary of an entire conversation, instead of scrolling all the way up. It can arrive on its own, at the time you set.
Text, photo, PDF, video or audio: pick it now, it goes out at the time you set. Before sending, a double recipient check — if the open chat cannot be proven to be the right one, nothing is sent. And if a message of yours gets stuck with a clock, ZapVox tells you.
Birthday, last order, what was agreed. The note stays attached to the conversation, only in your browser, and shows up when you open the chat — nobody on the other side sees it.
One client sends voice notes in Spanish, the family group needs no transcription, and a supplier wants the text back. In each chat's ⚙️ you choose language, translation, summary and sending for that chat only — groups included. Everything else follows the general settings.
Type /address + Tab and the full text appears — with {nome} and {data} filled in from the open chat. Replies you repeat ten times a day become a shortcut.
Stepped away? WhatsApp Web sits behind a PIN that exists only on your computer. It locks by itself after a few idle minutes, or right away, with one click.
A 10, 20, 40-minute voice note? ZapVox splits it into parts on its own and returns the full text, start to finish — no cut ending.
The extension, the website and support speak all three. You pick yours; the audios can arrive in any of 99+ languages.
One click on the icon next to the microphone and that audio becomes a reminder. The box stays until you close it — or fades in 30, 10 or 5 seconds, your way.
After transcribing, ZapVox can post the text (or the translation) in the chat itself, on its own. In groups, only if you turn the group switch on.
Audio cannot be searched — transcriptions can. Look up a word and ZapVox shows which conversations it appeared in, grouped by person, and opens the chat at the right spot.
Take a conversation's transcriptions out of WhatsApp (.txt) when you need a record — medical chart, case file, minutes.
Free on every plan, including Free. Connect your Groq or OpenAI key and transcription, translation and summaries run on your account — paying the provider only for what you use, outside ZapVox's daily limits.
The key is kept encrypted (AES-256-GCM) only in your browser.
Drug names, technical terms, a client's nickname: teach once and transcription stops failing in the same spot. People's names come out spelled the way you registered them.
Sharing your screen in a meeting? One switch blurs the transcriptions instantly. The content is still there — it just does not show to whoever is on the other side.
Text ready to paste anywhere: medical chart, CRM, e-mail, Notion, Google Docs.
Your audio is processed on the spot and never stored. With BYOK it goes straight from your browser to the AI provider — without passing through our servers. Data handled under Brazil's LGPD.
Transcription in 2–5 seconds for most audios. No queues, no waiting, no extra apps.
Your account stays active in one browser at a time — it keeps your credentials from being used by others. On another computer, just click “Use here” (free switch, no new login).
Work on the office PC, at home and on the laptop. Need more than one at the same time? Add computers (optional, +R$9.90 /mo each — up to 10 per account) and manage it all in your dashboard.
Every feature explained at leisure, with everyday examples — see them all →
The client's account becomes text in the case file: transcribe, export the conversation as .txt and find any audio by a single word right before the hearing.
The patient's report goes straight to the chart, without listening twice. Drug and patient names spelled right, with the glossary.
Follow your team and clients by reading, not listening. A digest of the whole day in minutes, and messages and files scheduled outside business hours.
A spoken order becomes text ready for the CRM. Automatic translation to serve customers in any language, without leaving the chat.
Comparison checked against each competitor's official pages on 18/08/2026. Third-party pricing changes without notice — check before deciding.
| Feature | ⚡ ZapVox | KaptionAI / Notta | Otter |
|---|---|---|---|
| Works on WhatsApp Web | Yes | Partial | No |
| Free with no expiry date (no credit card) | Yes — permanent Free plan, automatic 7-day trial | Trial locks you out unless you subscribe | Very limited |
| Audio kept after transcribing | We don't keep it — and in BYOK mode the audio never passes through us | Not stated | Not stated |
| Built-in translation | 99+ languages | Limited | No |
| Summaries in your language | Native | English only | No |
| Monthly price | from R$14.90 /mo (Starter) | R$60–120/mo (~US$11–22) | R$60–100/mo (~US$11–18) |
ZapVox costs less than a weekly coffee and does in Portuguese what the others don’t do at all. Installing takes less time than reading this sentence.
📥 Install free on ChromeFree to install · no card · works on Chrome, Edge and Firefox
Every audio you read instead of listening to means minutes back in your day.
Real numbers from our own database, updated on 18/08/2026.
Start on Free and upgrade when you need to. The difference, in practice:
| Feature | Free | ⚡ Pro |
|---|---|---|
| Voice message transcriptions | 10/day in the cloud (up to 15 min of audio/day) | 150/day and up to 150 min of audio/day (fair use) |
| Automatic translation (99+ languages) | No | Yes |
| Automatic AI summaries | No | Yes |
| 📖 Custom glossary | No | Yes |
| 🔎 Transcript search | No | Yes |
| 📄 Export chat transcripts | No | Yes |
| 📋 Whole-chat summary | No | Yes |
| 🗞️ Automatic daily digest | No | Yes |
| 🎙️ ZapVox watermark | Always on | Removable |
| Side panel in WhatsApp Web | Yes | Yes |
Install free, no credit card. On your first sign-in you get 7 days of full access — automatically.
Every sign-up starts with a 7-day trial: 15 operations/day and up to 30 min of audio/day with every feature unlocked — no card. When it ends you go back to Free; nothing is charged. Billed in Brazilian reais (BRL).
Prices are billed in Brazilian reais (BRL) via Stripe — USD values are approximate. Want to use your own API key? Learn about BYOK →
ZapVox is published in all three stores — Chrome Web Store, Edge Add-ons and Firefox Add-ons. Available now for Chrome, Edge and Firefox users.
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