AI
AI驱动工具：支持15种语言的翻译器、PDF摘要、改写与转述、语法纠正、音频/视频转写、图像描述，以及与PDF对话。
AI 摘要
获取任何长PDF文档的AI摘要。
AI翻译工具
使用免费本地AI将文本翻译成15种语言。
AI改写工具
改写和改进任何文本，4种风格。
AI语法检查
即时纠正拼写、语法和句法错误。
AI邮件写作
一键生成专业电子邮件。
PDF关键词
从任PDF中提取15个主要关键词。
PDF对话
向您的PDF提问，AI回答。
AI转录
使用Whisper将音频和视频转化为文字。
图像描述
LLaVA分析并描述您的图像。
OCR PDF识别
使扫描的PDF或图片完全可搜索和复制。
移除背景
使用AI一键去除图片背景。
图像放大
使用AI将图片放大4倍或8倍，不损失清晰度。
签署 PDF
为任何PDF文档添加电子签名。
Free AI tools for documents, text, and images
FileSwiftly turns cutting-edge AI into 13 practical utilities you can use in seconds: translate text into 11 languages, summarize long PDFs, transcribe audio, rewrite for tone, check grammar, caption images, ask questions about your PDFs, generate emails, remove image backgrounds, upscale photos, and more. No API keys, no prompt engineering — just upload or paste, and get your result. All free, all browser-based.
Why our AI tools stand out
Best-in-class models
We curate open-weight and commercial models (Llama, Whisper, SDXL) and auto-route each task to the model that performs best for your language.
Private by design
Inputs are never used to train any model. Your text, PDF, or image stays on our infrastructure and is deleted within 1 hour.
11 languages supported
Translate, summarize, or rewrite in English, French, Spanish, German, Portuguese, Italian, Chinese, Japanese, Korean, Arabic, and Russian.
No usage cap
Free tier gives unlimited calls. Premium caps only exist for very long inputs (>100 MB audio, >300-page PDF).
AI tools — frequently asked questions
Which AI model do you use?
We auto-route each request to the best-fit model (Llama-3.1, Mistral, Whisper, Stable Diffusion). You don't need to choose — we benchmark regularly and pick the strongest free-tier option.
Is my input used to train models?
Never. FileSwiftly does not resell, store beyond 1 hour, or forward any user input to any training pipeline.
How accurate is the PDF summary?
For typical business/academic PDFs under 100 pages, our summary tool captures the main thesis, key findings, and actionable conclusions with ~85-90% fidelity vs human-written summaries. Longer documents get a hierarchical summary.
Does AI transcription work for my accent?
Yes — our transcription engine (Whisper-large) handles 50+ accents and 90+ languages accurately. Very noisy audio or strong dialects may reduce accuracy; we display a confidence score.
Can I batch-process multiple files with AI?
Yes, up to 25 files per batch in the free tier (tool-dependent). For higher volumes, contact us for a simple API.