# LeanImg — Unlimited Free Image Processing 根据 OpenAITools.app 于 2026-11-11 核对的流量数据，LeanImg — Unlimited Free Image Processing（leanimg.com）是一个收录在 AI Photo Editor 下的 AI 平台，月访问量为 3923，月度环比流量变化为 +2003（+104.3%）。其主要地理市场为印度（28.2% 流量份额），采用 free 定价模式。按月流量计算的主要竞争替代方案包括 remove.bg（5149.98万次访问/月），Shutterstock AI 图像生成器（4785.52万次访问/月），Photoroom（1821.39万次访问/月）。 LeanImg is a free online image toolkit that bundles eleven browser-based tools into one site: an AI image upscaler, background remover, compressor, resizer, cropper, format converter, OCR text extractor, PDF-to-text reader, passport photo maker, AI image detector, and favicon generator. The entire pipeline runs on your own device through client-side JavaScript and WebAssembly, so your photos and documents never leave your browser. There are no accounts, credits, daily caps, or output watermarks, and files come back at full resolution. ## 关键遥测与规格 | 指标 | 数值 | | :--- | :--- | | 工具名称 | LeanImg — Unlimited Free Image Processing | | 标识 | leanimg-unlimited-image-processing | | Status | active | | Origin | independent | | Maintenance | active | | 官方域名 | leanimg.com | | 官网地址 | https://www.leanimg.com | | 分类 | AI Photo Editor, AI 背景移除工具, AI Image Upscaler, AI 图片裁剪 | | 定价模式 | free | | 月访问量 | 3,923 | | 月度环比流量变化 | 2,003 | | 月度环比增长率 | +104.3% | | 主要市场 | 印度 | | 市场份额 | 28.2% | | 直接访问量 | 1,563 | | 自然搜索访问 | — | | 社交访问 | — | | 推荐访问 | 378 | | 邮件访问 | 115 | | 评价得分 | 4.6 | | 收藏数 | 0 | | 支持平台 | 网站 | | 计费平台 | | | 属性 | 功能: 网站 | | 标签 | 免费在线图片工具, 图片压缩器, 图像尺寸调整, 图片裁剪工具, 图像转换器, JPG 转换器, PNG 转换器, WebP 转换器, AVIF 转换器, HEIC 转换器, 网站图标生成器, 背景移除, AI 背景移除, 图像放大器, AI 图像放大, Real-ESRGAN, 图片转文字, OCR 文字识别, PDF 转文字, 护照照片制作, 浏览器端图片处理, 私密图片处理, 批量图片处理, 无需注册, 无水印 | ## 概览 LeanImg is a free online image toolkit that bundles eleven browser-based tools into one site: an AI image upscaler, background remover, compressor, resizer, cropper, format converter, OCR text extractor, PDF-to-text reader, passport photo maker, AI image detector, and favicon generator. The entire pipeline runs on your own device through client-side JavaScript and WebAssembly, so your photos and documents never leave your browser. There are no accounts, credits, daily caps, or output watermarks, and files come back at full resolution. ## 定价与套餐 Completely free with no paid plan, no credits, no daily limits, and no account. All processing happens locally in your browser. ## 关键功能与能力 - **AI Image Upscaler:** Upscale photos 2x or 4x using an on-device AI model with GPU acceleration, returning a full-resolution PNG with no watermark. - **AI Background Remover:** Cut out subjects and get a transparent PNG on a transparent, white, or custom-colored background. The model runs locally after a one-time download. - **Compressor, Resizer & Cropper:** Compress JPG, PNG, WebP, AVIF and GIF files or hit a target KB size; resize to exact pixels, percentages, or 15 social presets; crop to seven built-in ratios or a custom W:H. - **Universal Format Converter:** Reads JPG, PNG, WebP, AVIF, HEIC, SVG, TIFF, BMP, GIF and ICO, and writes any of them as JPG, PNG, WebP, AVIF or PDF — up to ten files at once. - **OCR, PDF Text & Document Tools:** Extract text from images and scanned PDFs in nine languages, generate passport and visa photos for 205 documents in 92 countries, detect AI-generated images, and build full favicon sets with a web manifest. ## 主要用例 - **Prepare posts without design software (Social media manager):** Resize and crop images to Instagram, YouTube, or TikTok presets, compress them under a platform's upload limit, and convert HEIC phone photos to JPG — all without installing anything. - **Clean product photos fast (E-commerce seller):** Remove backgrounds from product shots for transparent PNGs, upscale low-resolution supplier images, and batch-compress a catalogue before uploading it to a store. - **Process sensitive documents locally (Privacy-conscious professional):** Pull text out of scans, screenshots, and PDFs in nine languages and generate compliant passport photos, knowing that contracts and IDs never leave the device. - **Ship assets and icons (Web developer):** Convert legacy images to WebP or AVIF, hit exact pixel dimensions, and generate ICO plus PNG favicons with a ready-made web manifest. ## 优势 - No sign-up, no watermarks, no credits, and no daily caps - Files are processed in the browser and never uploaded to a server - Eleven tools in one place, including AI upscaling and background removal - Batch tools handle up to ten files per run - Backed by a registered company (Low Battery Studios, Netherlands), and the site documents its own accuracy benchmarks ## 局限 - Performance depends on your own device and GPU; an older laptop can be slow on large batches - First use of the background remover requires a large one-time model download (about 190 MB) - Some conversions are lossy by nature — animated GIFs lose animation and transparent areas turn white in the upscaler - No API, no desktop app, and no team or account features ## 常见问题 ### Is LeanImg really free, and is there a catch? Yes, it is free with no paid plan, no credits, and no daily limit. There is no hidden tier that unlocks resolution or removes a watermark, because there is no watermark to remove. The trade-off is that your device does the computing, so very large batches will be limited by your own hardware. ### Are my images uploaded anywhere? No. Every tool runs client-side in your browser using JavaScript and WebAssembly. Your files and the extracted text stay on your machine, which is why the background remover must download its model before the first run. ### What are the file limits? Nine of the eleven tools set a size limit. Batch tools (compressor, resizer, converter, image to text, PDF to text) accept up to ten files of 50 MB each, and the PDF reader stops at page 25. The cropper and favicon generator take one file up to 10 MB, while the upscaler and background remover take one file up to 50 MB. ### Can it make compliant passport photos? It supports passport, visa, and ID photos for 205 documents across 92 countries, auto-detecting the face and applying each document's head-size rules. It also produces a printable sheet for most documents, though some (such as UK online applications) do not require a crop. ### How accurate is the AI image detector? The tool first checks Content Credentials and embedded AI labels, then looks for hidden watermarks, and only then runs a model estimate. In the site's October 2026 test on untouched files it flagged 110 of 114 AI images, while 3 of 69 real photos scored 50% or higher — so treat the result as a signal, not proof. ### LeanImg — Unlimited Free Image Processing 的月流量和增长趋势如何？ LeanImg — Unlimited Free Image Processing 目前每月获得 3923 访问量，月度环比流量变化为 +2003（增长率 +104.3%）。其主要来源市场是印度（28.2% 份额），包括每月 1563 次直接访问和每月 — 次自然搜索访问。 ### LeanImg — Unlimited Free Image Processing 免费吗？它的定价模式是什么？ LeanImg — Unlimited Free Image Processing 采用 free 定价模式。Completely free with no paid plan, no credits, no daily limits, and no account. All processing happens locally in your browser. 支持的计费和结账平台包括：未列出。 ### 2026 年 LeanImg — Unlimited Free Image Processing 的最佳替代方案有哪些？ 基于 OpenAITools.app 的分类流量和功能契合度，LeanImg — Unlimited Free Image Processing 的前五个替代方案是：1. remove.bg（5149.98万次访问/月）; 2. Shutterstock AI 图像生成器（4785.52万次访问/月）; 3. Photoroom（1821.39万次访问/月）; 4. VSCO（1684.91万次访问/月）; 5. Picsart（1651.16万次访问/月）。 ### LeanImg — Unlimited Free Image Processing 支持哪些平台和核心 AI 能力？ LeanImg — Unlimited Free Image Processing 被归类在 AI Photo Editor, AI 背景移除工具, AI Image Upscaler, AI 图片裁剪下，支持以下平台：网站，其核心能力标签包括：免费在线图片工具, 图片压缩器, 图像尺寸调整, 图片裁剪工具, 图像转换器, JPG 转换器。 ## 替代工具 | 工具名称 | 月访问量 | 定价模式 | 对比 | | :--- | :--- | :--- | :--- | | [remove.bg](https://openaitools.app/zh/tool/remove-bg) | 51,499,821 | 免费增值 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-remove-bg) | | [Shutterstock AI 图像生成器](https://openaitools.app/zh/tool/shutterstock-com) | 47,855,171 | 付费 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-shutterstock-com) | | [Photoroom](https://openaitools.app/zh/tool/photoroom) | 18,213,872 | 免费增值，免费试用，定价请咨询 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-photoroom) | | [VSCO](https://openaitools.app/zh/tool/vsco) | 16,849,133 | 免费增值 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-vsco) | | [Picsart](https://openaitools.app/zh/tool/picsart) | 16,511,620 | 免费增值，免费试用 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-picsart) | | [Tencent Yuanbao](https://openaitools.app/zh/tool/tencent-yuanbao) | 9,318,521 | 免费 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-tencent-yuanbao) | | [Pixlr](https://openaitools.app/zh/tool/pixlr) | 9,251,872 | 免费增值 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-pixlr) | | [Cutout.Pro](https://openaitools.app/zh/tool/cutout-pro) | 6,600,547 | 免费增值 | [对比](https://openaitools.app/zh/compare/cutout-pro-vs-leanimg-unlimited-image-processing) | | [Fotor AI](https://openaitools.app/zh/tool/fotor-ai) | 5,818,661 | 免费增值 | [对比](https://openaitools.app/zh/compare/fotor-ai-vs-leanimg-unlimited-image-processing) | | [EaseUS Software](https://openaitools.app/zh/tool/easeus-software) | 4,037,331 | 免费增值，免费试用，付费 | [对比](https://openaitools.app/zh/compare/easeus-software-vs-leanimg-unlimited-image-processing) | | [WatermarkRemover.io](https://openaitools.app/zh/tool/watermarkremover-io) | 3,345,936 | 免费增值 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-watermarkremover-io) | | [Media.io AI Image Enhancer](https://openaitools.app/zh/tool/media-io-ai-image-enhancer) | 3,256,173 | 免费增值 | [对比](https://openaitools.app/zh/compare/leanimg-unlimited-image-processing-vs-media-io-ai-image-enhancer) | --- 来源：https://openaitools.app/zh/tool/leanimg-unlimited-image-processing