New
OpenAI Payload Validator — Validate API Request Bodies Before Sending
Validate OpenAI API request payloads against the official schema before making API calls. Catch errors instantly in your browser — no network requests, completely private.
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Tag: free tool
New
PDF to Images — Convert PDF Pages to JPEG or PNG in Your Browser
Convert PDF pages to JPEG or PNG images instantly in your browser. No uploads, no cloud processing — completely private and works offline.
New
Prompt Template Formatter — Fill Variables in AI Prompt Templates
Create reusable AI prompt templates with variables. Fill placeholders like {{name}} and {{topic}} instantly in your browser. No data sent to servers.
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Free Regex Tester — Test Regular Expressions in Your Browser
Test and debug regular expressions with live match highlighting, group capture display, and replacement preview. Works offline — no data leaves your browser.
New
Rotate PDF Pages Free — Browser-Based PDF Rotation, No Upload
Rotate individual or all pages in a PDF by 90°, 180°, or 270°. Runs entirely in your browser — no file uploads, completely private, works offline.
New
Resize Images Free — Browser-Based Image Resizer, No Upload
Resize images to exact pixel dimensions or by percentage. Works in your browser with no uploads — your photos stay private. Free and works offline.