nopecha-extension README

The project's README from github.com/NopeCHALLC/nopecha-extension. As one markdown file: README.md.


NopeCHA

Easy, fast, and cheap CAPTCHA automation for everyone.

| API Reference | Documentation | CAPTCHA Demo | Developer Discord |

PyPI - Version NPM Version GitHub Release Chrome Web Store Version Mozilla Add-on Version


Latest News 🔥

Previous News
  • [2025/11] Released 0.5.2 fixing hCaptcha drag-and-drop coordinate rescaling on small viewports, Turnstile checkbox detection on Cloudflare interstitial pages, improving Turnstile bounding boxes, hardening reCAPTCHA flows, and restoring GeeTest. See the updated API reference here.
  • [2025/11] Released 0.5.1 to adapt to hCaptcha’s new coordinate system post 0.5.0. See the notes here.
  • [2025/11] Released 0.5.0 introducing new AI models for hCaptcha and general computer use (invite-only beta), plus Turnstile fixes, performance, and stability improvements. Notes here.
  • [2024/11] Released 0.4.13 fixing Cloudflare Turnstile, improving GeeTest recognition, and delivering performance and stability improvements.
  • [2024/06] Released 0.4.12 fixing Cloudflare Turnstile.
  • [2024/06] Released 0.4.11 fixing the reCAPTCHA language code.
  • [2024/06] Released 0.4.10 adding beta support for GeeTest, Lemin, and Yandex CAPTCHAs; plus fixes for AWS CAPTCHA and Cloudflare Turnstile, and stability improvements.
  • [2024/05] Released 0.4.9 adding retry delay to avoid rate limits, fixing icon text overflow, and improving stability.
  • [2024/04] Released 0.4.8 fixing AWS WAF loop; improving AWS WAF, hCaptcha, and reCAPTCHA recognition; plus performance and minor bug fixes.
  • [2023/11] Released 0.4.7 adding CSS selector extraction via UI and a disabled hosts menu; fixing Text CAPTCHA input, duplicate AWS WAF API calls, and Firefox logs; with performance and stability improvements.
  • [2023/11] Released 0.4.6 with a UI redesign, Settings API logs, an incognito bug fix, and major stability improvements.
  • [2023/10] Released 0.4.5 fixing empty image data in POST and PerimeterX on several domains; stability improvements.
  • [2023/10] Released 0.4.4 fixing Draw a box around challenges; minor stability improvements.
  • [2023/10] Released 0.4.3 adding support for a new hCaptcha API function.
  • [2023/10] Released 0.4.2 improving hCaptcha area select recognition and fixing minor bugs.
  • [2023/10] Released 0.4.1 maintenance update.
  • [2023/10] Released 0.4.0 maintenance update.
  • [2023/04] Released 0.3.13 maintenance update.
  • [2023/04] Released 0.3.12 maintenance update.
  • [2023/04] Released 0.3.11 maintenance update.
  • [2023/04] Released 0.3.10 maintenance update.
  • [2023/04] Released 0.3.9 maintenance update.
  • [2023/03] Released 0.3.8 fixing an hCaptcha multiple choice bug.
  • [2023/03] Released 0.3.7 maintenance update.
  • [2023/03] Released 0.3.6 maintenance update.
  • [2022/12] Major commit textcaptcha empty selectors improving Text CAPTCHA selector handling.
  • [2022/12] Major commit popup mods, auth header updating popup UI and authentication headers.
  • [2022/11] Major commit BG API, reCAPTCHA visibility check, Firefox bug fix adding background API functions, improving reCAPTCHA visibility checks, and fixing Firefox issues.
  • [2022/11] Major commit add disabled hosts introducing a disabled hosts list.
  • [2022/11] Major commit add custom solve delay input exposing a configurable solve delay.
  • [2022/11] Major commit Popup (#21) introducing a new popup interface.
  • [2022/11] Major commit add aws waf adding first class automation for AWS WAF challenges.
  • [2022/10] Major commit locator iframes & add funcaptcha demo enhancing iframe injection and adding a FunCaptcha demo.
  • [2022/10] Major commit ocr autodetect WIP adding OCR auto detection groundwork.
  • [2022/10] Major commit ocr base64 from canvas implementing base64 OCR extraction from canvas.

About

NopeCHA is a free-to-use and fully automatic CAPTCHA solver powered by multimodal AI through the NopeCHA API platform.

Why NopeCHA?

Find the full list of supported CAPTCHAs here.


Getting Started

The fastest way to start is to install our browser extension that automatically detects and solves CAPTCHAs present on the page. It works in both Chrome and Firefox, including all Chromium-based automation tools like Puppeteer and Selenium.

Chrome Chrome Extension     Firefox Firefox Add-on

Free to use for up to 100 requests per day. No sign-up or API key needed! Just install our extension and it will work instantly on any CAPTCHA it detects.

Note: requests made without an API key counts usage by IP address.

For higher limits and more features, sign up at NopeCHA.com to create an API key.


For developers integrating NopeCHA into their projects, please see our Documentation and API reference.


Supported CAPTCHA Types

Here is a sample of CAPTCHA types supported by NopeCHA, with more added regularly:

reCAPTCHA FunCAPTCHA
reCAPTCHA FunCAPTCHA
hCaptcha AWS WAF
hCaptcha AWS WAF CAPTCHA
Text CAPTCHA Cloudflare Turnstile
Text-based CAPTCHA Cloudflare Turnstile
And more ...
CAPTCHA CAPTCHA

Resources



About our Transition to Closed Source in 2023

Read more

Why Closed Source?

To maintain our edge and prevent abuse, we have chosen to restrict source code access to our browser extension. This allows us to continue providing a free-to-use service while protecting our proprietary technology and ensuring the integrity of our CAPTCHA-solving capabilities.

What Changed

We continue to publish the latest builds under GitHub releases and in the Chrome Web Store and Mozilla Add-on store, but the source code for the latest versions will no longer be publicly available.

We have archived the open-source v0.3.x branch for reference, but it is no longer maintained or supported.

The Road Ahead

We are committed to expanding support across CAPTCHA providers and improving accuracy, throughput, and cost efficiency.

Thank you for your understanding and continued support as we evolve our services to better serve our users and maintain the quality and reliability of our CAPTCHA-solving technology.


nopecha-extension (NopeCHALLC/nopecha-extension)

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What is this?NopeCHA is a browser extension that automatically detects and solves CAPTCHAs on any page, powered by multimodal AI running through the NopeCHA API platform.
Is this an extension I install in my browser, or a library?An extension for Chrome and Firefox. You load it into automated browsers like Selenium, Puppeteer, and Playwright, and there is also an API for calling NopeCHA directly from your own code.
How do I get it running?Install it from the Chrome Web Store or as a Firefox Add-on. After that it works automatically: it detects CAPTCHAs on the page and solves them with no configuration.
Do I need to sign up or get an API key first?No. It is free for up to 100 requests per day with no sign-up or API key; keyless usage is counted per IP address. An API key from a paid plan unlocks higher limits and more features.
Which CAPTCHAs can it actually solve?reCAPTCHA, hCaptcha, FunCAPTCHA, AWS WAF, Text CAPTCHA, Cloudflare Turnstile, and PerimeterX are the main ones, with GeeTest, Lemin, and Yandex supported too — and new types are added regularly.
What do people use it for?Any web automation that hits a CAPTCHA wall — from testing to data collection. It is built to be dropped into automated-browser workflows.
CAPTCHA providers change their challenges all the time — does it keep up?Yes — extensions, libraries, and the API get regular updates, and AI agents train on real CAPTCHAs through an online RL pipeline, so new challenges are learned as they appear.
The license says MIT — can I read the source code?Not for current versions. Since 2023 the source is closed; builds ship as binaries through GitHub releases and the Chrome and Firefox stores, and the archived v0.3.x branch is the last public code — it is unsupported.
Why did NopeCHA go closed source?To protect its edge and prevent abuse while keeping the service free to use. Latest versions ship as prebuilt extension binaries, and the archived v0.3.x branch is the last code you can read.
What can it do out of the box?Right after install it auto-solves supported CAPTCHAs on any page, and the popup shows solve-status and pass-rate diagnostics. Recent releases added configurable mouse speed and visualization, plus a math-expression mode for Text CAPTCHAs.
Do I have to automate a browser, or is there a plain API?There is a full API platform: you can call NopeCHA endpoints from your preferred programming language without the extension. The API reference lists all supported endpoints and CAPTCHA types.
Creator
NopeCHALLC
Size
31.5 MB
Stars
11K
Age
3y
Commits · 90 Days