On your daily commute
Open a short text in your phone browser. Adjust the language ratio and read at your own pace.
A little English in your everyday reading.
MazelingoRead Japanese and English together
Your favourite words.A little more English.
Read Japanese and English together. Adjust the mix and enjoy your own texts at your own pace, right in your browser.
Try your own text
Try examples without an account · Use credits for your own text after signup
文をタップすると、日本語・英語が切り替わります。
Start reading in three steps
Choose something you want to read, then set the language and ratio. Use your phone or computer browser.
Paste your text
Use your own notes or an article excerpt you can use. Enter up to 10,000 characters at a time.
Choose a language and ratio
Select a language and how much to mix in. Try 20–40% to start, then adjust to what feels comfortable.
Read and switch sentences
Tap to switch between an original sentence and its translation. Open an explanation or listen to the translated sentence when needed.
Read what already interests you
Bring your own short text. A commute, a coffee break or a page from your journal can be a place to start.
Over a cup of coffee
Paste an excerpt about travel, food or another interest. You choose what to bring to the reader.
With your own journal
Try a few sentences about your day. Familiar content gives you room to notice how another language expresses it.
Make room for another language
Mix complete sentences while keeping the original context nearby. Switch a sentence back whenever you want to check it.
Choose how much to mix in
Adjust the ratio from 0–100%, even after conversion. Remix to switch a different set of sentences at the same ratio.
今朝は、少し早く家を出ました。 There is a small café near the station. 窓のそばの席に座りました。 コーヒーを飲みながら、本を開きました。 静かな朝の時間が好きです。
I left home a little early today. There is a small café near the station. 窓のそばの席に座りました。 I opened my book over a cup of coffee. 静かな朝の時間が好きです。
The ratio describes how much language to mix, not your proficiency level. In short texts, the actual share of sentences may differ from the setting.
Switch a sentence back
Tap any sentence to switch between the original and translation without leaving the text.
Check meaning, grammar and vocabulary
Get an explanation of the translated sentence in the source language, with useful vocabulary. AI explanations can contain mistakes.
Listen to the translated sentence
Hear the translated sentence using your device’s speech feature. Available voices and languages depend on your browser and device.
Eight languages, in either direction
English, Japanese, Chinese, Korean, Spanish, French, German and Portuguese. Choose a source language and a different language to learn.
Plans for your reading
Try mixed reading for free, or test the Plus and Pro subscription checkout.
Waffo test mode · No real charge. Sign in to try a subscription checkout.
Free
￥0
Read examples for free and use account credits for your own text after sign-in.
Create a free account- Pre-generated examples need no account
- Up to 10,000 characters per article
- AI sentence explanations
- All 8 supported languages
- Adjust the mix, switch sentences and listen
- Save reading history on this device
For daily reading
Plus
￥780/month
For a regular reading habit.
- 1,500 credits each subscription month
- Up to about 150,000 characters if used only for translation; explanations share the balance
- Subscription credits expire at the end of the billing period and do not roll over
- Up to 10,000 characters per article
- All 8 supported languages
- Adjust the mix, switch sentences and listen
- Save reading history on this device
Pro
￥1,480/month
For frequent reading and closer study.
- 5,000 credits each subscription month
- Up to about 500,000 characters if used only for translation; explanations share the balance
- Subscription credits expire at the end of the billing period and do not roll over
- Up to 10,000 characters per article
- All 8 supported languages
- Adjust the mix, switch sentences and listen
- Save reading history on this device
Prices are in Japanese yen (JPY). Checkout currently uses Waffo test mode and does not charge real money. Translation and explanations share character-metered account credits.
What you can try for free
Read pre-generated examples directly. Your own text and AI explanations use account credits based on character count.
- Account-free examples, credits for AI
- The signup gift is shown on the page. Sign in for new translations and explanations. Ratio changes, sentence switching and browser read-aloud do not use credits.
- Up to 10,000 characters per request
- Split longer texts into shorter passages. Choose different source and learning languages.
- Request and service limits
- Rapid repeated requests are limited. If the service is busy or unavailable, a message will explain what happened.
- How your text is processed
- Text is sent to an AI service when you request translation or an explanation. Ratio changes and sentence switches happen on your device.
Questions about mixed reading
A few things to know before you start.
Mazelingo is a browser tool that mixes complete sentences in two languages. Paste your own text and adjust the language ratio. There is nothing to install.
You can read pre-generated examples without signing up. Your own text and AI explanations require an account and credits. The signup gift is shown on the page. Each article can contain up to 10,000 characters.
Start with a short, familiar text and a low ratio. 20–40% is one possible starting point. The ratio is a reading preference, not a measure of proficiency.
You can use it to practice reading sentences with help from the surrounding context. Understanding and learning outcomes vary; it does not guarantee fluency or reading without translation.
Use it in a phone or desktop browser. Read-aloud voices and language support vary by device, operating system and browser.
Text needed for translation or explanation is sent to an AI service when you request it. Ratio changes, remixing and sentence switches happen locally. See the privacy policy for details.
Mixed reading shows original and translated sentences in one reading flow. You can change the ratio or switch individual sentences. It is not a side-by-side translation view.
Start with something you want to read.
Paste a short passage and find a language ratio that feels right for you.