About Auro Tools
Powerful Tools. Less Friction.
Auro Tools brings practical image, PDF, AI, and developer utilities together in one place, so you can spend less time switching between tools and more time getting work done.
115
Live tools
across every category
9
Categories
images, PDFs, AI, code and more
82
Run in your browser
your input stays on your device
Free
To get started
most tools need no account
Useful Tools for Everyday Work
We focus on practical tasks across images, documents, AI development and software development, the small jobs that come up every day and shouldn't need a dozen different sites.
- 11 tools
Image Tools
Convert between JPG, PNG and WebP, shrink file sizes, and resize, crop or rotate images.
Browse Image Tools - 36 tools
PDF & Documents
Extract text, turn images or text into PDFs, merge and split files, and convert Word documents.
Browse PDF & Documents - 15 tools
AI & LLM
Count tokens, estimate model costs and check context windows, plus AI-assisted image and text tools.
- LLM Token Analyzer & Prompt Optimizer
- LLM Cost Calculator
- Context Window Checker
- Advanced Similarity Checker
- 30 tools
Developer Utilities
Format and validate JSON, encode and decode data, generate UUIDs, test regular expressions.
Browse Developer Utilities - 17 tools
SEO & Web
Generate meta tags and schema, preview search results, build sitemaps and check redirects.
Browse SEO & Web
Our Principles
Simplicity
Tools should be straightforward, with clear inputs, useful feedback and results you can understand at a glance.
Privacy by Design
Prefer browser-side processing when practical, and say plainly when a tool needs to process your file on our servers.
Accuracy and Transparency
Explain limitations, supported formats, estimates and data freshness wherever they affect the result.
Practical Utility
Build for real tasks people do every day, rather than adding features for the sake of a feature list.
How It Works
Three steps, whichever tool you pick.
Step 1: Choose your tool
Find the right tool by category, with search, or from the navigation menu.
Step 2: Complete your task
Upload a file, paste text or adjust the options. Each tool shows what it accepts and any size limits.
Step 3: Get your result
Preview, copy or download the output. Tools that process files on our servers may ask you to sign in with a free account before you download the result.
Your Data Deserves Transparency
Many utilities can work entirely in your browser. Some image, PDF and AI operations can't, so we tell you which is which instead of making one blanket promise.
- Uploads are used to produce your result and are not kept, with one noted exception below. Results are deleted automatically after a limited time.
- Usage analytics record which tool ran and whether it worked, never what you entered.
- Text sent to our AI provider is not kept after the answer is returned.
In your browser82 tools
These tools do their work on your device. What you paste or type is not sent to our servers.
On our servers33 tools
Image tools, some PDF tools and a few others need server processing. Your upload is used to produce the result and is not kept. The exception is the Email Signature Generator, which hosts the photo or logo you add so email clients can display it.
With an AI provider
The AI Rewriter, Paraphraser, Summarizer, Translate PDF and Prompt Optimizer send your text to our AI provider, Anthropic, to produce the answer.
Accuracy and Reliability
Tools differ in how precise they can be. We try to be clear about which is which.
- Exact versus estimated
- Token counts for OpenAI models use exact tiktoken encodings. For other model families we label the result as an estimate.
- Supported formats, stated up front
- Each file tool lists the formats and size limits it accepts, and tells you when a file can't be used.
- Honest limitations
- JPG can't store transparency, scanned PDFs have no text layer to extract, and PDF to Word reconstructs layout on a best-effort basis. We say so on the tool page.
- Clear errors
- When something is invalid or unsupported, you get a specific message instead of a silent failure.
Frequently Asked Questions
Quick answers about the tools, your data and getting help.
What is Auro Tools?
Auro Tools is a collection of 115 practical online utilities for images, PDFs and documents, AI and LLM work, software development and SEO. It is built and operated by Aurobotix.
Are Auro Tools free to use?
Yes, you can start for free: the tools are free to try, with no credit card needed. An optional paid Premium plan adds advanced tools and higher limits. The details are in our Terms & Conditions.
Do I need an account?
Not to try most tools. You can use them straight away. An account is needed for premium features, and tools that process files on our servers may ask you to sign in with a free account before you download the result. You can sign in from the login page.
Are my files processed in the browser?
It depends on the tool. 82 of our 115 tools run entirely in your browser. The rest, such as image tools and some PDF tools, process your file on our servers, and a few AI tools send text to an AI provider. Each tool page says which applies, and the Privacy Policy lists them in detail.
Are uploaded files stored on your servers?
Your upload is used to produce the result and is not kept. The one exception is the Email Signature Generator, which hosts the photo or logo you add so email clients can load it. The result itself is held for a limited time so you can download it (24 hours without an account, or your plan's file-retention period once you're signed in), then deleted automatically.
Read the retention details in the Privacy Policy.
Which types of tools are available?
Image, PDF and document tools, AI and LLM utilities, developer tools, converters, calculators, generators and SEO tools. Browse everything on the tools page.
How can I report a bug or request a feature?
Send us a message through the contact page. For a bug, include the tool name, what you entered, and the result you expected. We aim to reply within two business days.
Find the Right Tool for Your Next Task
Explore practical tools for images, documents, AI workflows, and development, all in one place.
