Indie developer building privacy-first web tools. Maker of MoguanPDF — 24 PDF tools that run 100% in the browser.

github

zhengping sun • Peerlist

AI Juhe (<a target="_blank" rel="noopener noreferrer nofollow ugc" class="break-all link-break text-gray-500 hover:underline" href="http://aijuhe.org">aijuhe.org</a>) is a Chinese-language directory of AI tools. It lists 475 tools in 15 categories, including chat assistants, image and video generation, code, document processing and translation. Each entry has a pricing label and a short write-up in Chinese and English. Most English directories skip the question users in mainland China ask first: can I open this from here? Every listed tool has a /can-i-use page. The 224 tools that are blocked also have an /alternatives page listing domestic substitutes. You do not need an account to browse. Signing in is only for upvoting a tool or saving it to favourites.

AI Juhe

LLM Abacus is a price table for large language model APIs. It covers 57 models from 16 vendors, including OpenAI, Anthropic, Google, xAI, DeepSeek, Zhipu, Moonshot, Alibaba, ByteDance, Baidu, Tencent and MiniMax, with input, output and cached-input prices side by side. Overseas vendors keep their USD list price and are converted through a single exchange-rate constant, so both currencies stay visible. Paste a prompt into the estimator and it counts tokens and gives you the cost per model. There is also a monthly bill calculator, a routing tool that mixes a cheap model with a flagship one to show what the split saves, per-model detail pages, and a live latency board. An automated job re-checks prices every day and flags anything that has drifted.

LLM Abacus

Koutuxia removes the background from a photo and hands you a transparent PNG. The free path runs BiRefNet-lite in the browser: a 47 MB int8 model downloaded once from a CDN and cached, then executed through WebGPU where the device supports it and WASM SIMD where it does not, at a smaller input resolution on weaker hardware. A paid path sends the image to a cloud model instead, for finer edges, higher resolution and batch jobs. Around the cutout you also get a one-click background colour swap for red, blue and white, a photo restoration mode, and direct export to transparent PNG. The browser-side tools are free and need no signup, and the site works from mainland China without a proxy.

Koutuxia

IPOK checks any IP address and shows you why it scored the way it did. It reads seven live reputation sources (Scamalytics, proxycheck, AbuseIPDB, ipapi.is, StopForumSpam, ip-api, plus an offline database built from the Tor exit list, X4BNet's VPN ranges and the Spamhaus DROP list) and weights them instead of averaging blindly. A datacenter address needs two specialist sources to agree before it gets flagged, which stops whole AWS or Hetzner ranges from being written off as proxies. A residential address needs only one. You also get the /24 neighbourhood score, ASN history with first-seen and last-seen dates, and a per-source breakdown of the final number. There is no account to create and no paywall. A CLI and a Chrome extension are available too.

IPOK

<h3>MoGuan is a local PDF toolkit designed for users who handle sensitive documents. It offers a comprehensive suite of tools that operate entirely within your browser, ensuring your files never leave your computer. This privacy-focused approach makes it ideal for sensitive contracts, resumes, and financial reports.</h3><ul><li>Classic Tools (100% Local &amp; Free): Compress PDF to reduce file size while keeping text searchable or rasterizing for larger savings. Merge multiple PDFs into a single document in your preferred order. Split PDFs by extracting pages or creating individual files. Rotate pages by 90, 180, or 270 degrees. Edit pages by deleting unwanted ones, adding page numbers, watermarks, or reordering them. Encrypt and decrypt PDFs with passwords. Crop pages by trimming margins or auto-trimming whitespace. Sign PDFs by drawing or uploading a signature. Remove blank pages automatically. Add images or stamps. Apply Bates numbering for legal and audit purposes.</li><li>Conversion Tools: Convert images (JPG, PNG) to PDF, stitch PDF pages into a single long image, export PDF pages as JPG/PNG, convert PDF to editable Word (.docx) with optional AI re-flow, and convert PDF tables to Excel (.xlsx).</li><li>OCR: Extract text from scanned PDFs or images, supporting Chinese and English, running locally in your browser.</li><li>AI Tools (Powered by DeepSeek): Convert PDF to Markdown, generate AI summaries of documents, translate PDFs between 7 languages (Chinese, English, Japanese, Korean, French, Spanish, German), and ask questions directly to your PDF content. AI features send only extracted text, never the original PDF, and offer 5 free uses per day.</li></ul>MoGuan requires no login or installation and works offline for its classic tools. The user interface is bilingual, and AI prompts are optimized for Chinese content.