VeloFill: Your Free, AI-Powered Form Filling Assistant
VeloFill is a free browser extension that leverages your own knowledge bases and any mix of OpenAI-compatible LLM connections to fill web forms intelligently and securely—right in your browser.
Free on Chrome, Firefox, and Edge.
Everything You Need for Smarter Browsing
Free Extension
VeloFill is free to install and use. Bring your own OpenAI-compatible LLM; you control any model costs.
Bring your own AI
VeloFill connects to any OpenAI-compatible service—commercial, Azure-hosted, or local. Add multiple connections, keep work and personal keys separate, and choose a default in seconds.
Your private knowledge base
All your information is stored securely in a private knowledge base on your own computer, not in the cloud.
Per-KB Routing
Assign a specific connection to each knowledge base or let it inherit the default. Every form is powered by the right API key automatically.
Context-Aware Filling
VeloFill can use additional context from the webpage to fill out forms more accurately. It understands the form's context, not just the labels.
Customizable Instructions
Tailor Prompt Instructions per knowledge base to match tone, formatting, or compliance needs before the model fills anything in.
Lightning-Fast Autofill
Fill complex forms in seconds with one click or a keyboard shortcut—save minutes on every submission without slowing down your browser.
Secure by Design
Your data stays on your device. VeloFill communicates with your chosen LLM over HTTPS and does not operate any servers.
Who Benefits from VeloFill
Professionals and Job Seekers
Automatically fill repetitive application forms such as job applications, account sign-ups, or SaaS onboarding forms using your private knowledge base.
Customer Support and Sales
Accelerate filling CRM or ticketing forms with personalized, accurate information while preserving privacy and control.
Content Creator and Social Media Management
Automate submission forms and posting workflows across platforms to boost productivity.
Academic and Research Data Entry
Automate data entry for online surveys and academic portals with improved accuracy and consistency.
How It Works
Install VeloFill
Install the VeloFill browser extension from the Chrome Web Store, Firefox Add-ons, or Microsoft Edge Add-ons. See the installation guide for details.
Add Your Connections
Open the Connections tab in Options to add each OpenAI-compatible endpoint, test access, and choose a default connection. Learn more in Configure Connections.
Build Your Knowledge Base
Create a secure knowledge base with the information you want to use for form filling, then assign the best connection or inherit the default. See Knowledge Base for how to organize entries.
Select a Form
Click the VeloFill icon in your browser and select the desired form on the current page. See the Using VeloFill guide.
AI-Powered Filling
VeloFill sends the form's HTML and your knowledge base to the LLM, which then returns the filled data. Learn workflows and tips in Using VeloFill.
New to VeloFill? Visit the Documentation for setup, guides, and troubleshooting.
FAQ
Is VeloFill free to use?
Yes. The extension is free; you only pay your chosen LLM provider if applicable.
Which LLMs does it support?
Any OpenAI-compatible API endpoint (hosted or local).
Where is my data stored?
Locally on your device; VeloFill does not run servers.
Does it work offline?
Knowledge base access works locally; LLM calls require network.
Which browsers are supported?
Chrome, Firefox, and Edge.
How fast is it?
Complex forms fill in seconds with one click or a shortcut.
Can I use different profiles?
Yes—create separate knowledge bases for work, personal, or clients and link each one to the best LLM connection.
Screenshots
Manage multiple LLM connections, test endpoints, and choose models.
Manage your local knowledge bases.
VeloFill analyzing a form with AI.
Provide temporary context for one-time fills.
Save Minutes On Every Form
Install VeloFill free and start autofilling in seconds. Your data stays on your device.