Practical guides
NFC, QR code, and Pengpengtie guides
Start with who needs the information and how they will open it. Then choose a QR code or NFC tag. These guides bring together the tools, physical media, and practical limits so you can begin with a clear understanding. For a first try, choose a familiar URL, review it, then generate a QR code or prepare to write a tag.
Read and write with care
Learn about compatible NDEF tags, write access, capacity, and the need to save original information before changing a tag.
Read the guide QR code toolsCreate, scan, and read images
Prepare URLs, text, Wi-Fi details, or contacts as QR codes. Test readability and review who should receive the information.
Read the guide Pengpengtie / 碰碰贴A physical point to tap
Understand NFC tap tags and stickers, their relationship to TapCode, suitable locations, and practical limits.
Read the guideEasy to use across a wide range of everyday sharing needs
TapCode is designed around everyday sharing needs for a wide range of people. Depending on the content type, links, Wi-Fi details, contacts, event pages, and supported app links can become QR codes or be written to compatible NFC tags. New to it? Start with a familiar link. If you share often, save common content and reuse it to reduce repeated typing.
Choose an entry point, then prepare the content
| What you want to do | Where to start |
|---|---|
| Read or update information on a physical tag | NFC tools guide: read first, then check permission, capacity, and original information. |
| Share content at a distance or place it on a screen or paper | QR code tools guide: create a clear image and test before sharing. |
| Add a tap-to-open point to an object or location | Pengpengtie guide: choose compatible media, write, and test in place. |
TapCode is the tool; Pengpengtie is the medium
TapCode is an NFC and QR assistant for iPhone, covering reading, writing, generation, scanning, and saving common content. On this site, Pengpengtie (碰碰贴) refers to NFC tap tags, stickers, and similar physical media. A compatible phone or app must still interpret the stored information. A successful read or write does not guarantee every action that follows.
Each guide has a separate Chinese and English page, linked from the language control in the header. Learn about the product on the TapCode homepage, or visit the support center for help.
Check permission and information first
Read or write only information you have permission to handle. Check the source before opening an unfamiliar link, and review who should receive Wi-Fi, contact, or other details. Writing may overwrite a tag’s existing contents, and original information may be unrecoverable. Read and separately save or record it first.
TapCode does not automatically back up an original tag before writing. Saved tags and operation history are not a complete device backup. Read the Terms of Use and Privacy Policy.