Chaudify — free online tools that run in your browser
57 tools for images, PDFs, text, QR codes, passwords and more. Nothing you open is uploaded — every file is processed on your own device, with no signup and no account.
- Private by default
- Files stay on your device.
Nothing is uploaded. - Instant, no queue
- No upload wait on large files, no processing queue.
- No signup
- Open a tool and use it. No account, no email, no paywall.
Featured tools
Browse all 57 toolsImage CompressorCompress JPG, PNG and WebP images in your browser — nothing is uploaded, and every image shows the exact KB saved.Merge PDFMerge multiple PDF files into one document. Free, private, browser-based.URL QR Code GeneratorGenerate URL QR codes instantly. Bridge print and digital.Password GeneratorGenerate strong passwords instantly. Customize length and character types.Convert JPG to PNGConvert JPG to PNG at full resolution: full colour, or 256 colours when it looks the same.Word Character CounterCount words, characters, sentences, paragraphs, and reading time. Free, browser-based.JSON FormatterFormat, validate, minify, and beautify JSON online free. Instant results.Advanced Favicon GeneratorGenerate favicons from images, text, or emojis. Export as ICO, PNG, SVG. Free, browser-based.PDF CompressorCompress a PDF online for free. Images are re-encoded and scaled down; text stays sharp and selectable, and nothing is uploaded.Image ResizerResize images online by pixels, percentage, aspect ratio, or preset. Free, browser-based, batch ready.Text Case ConverterConvert text between uppercase, lowercase, title case, sentence case, camelCase, snake_case, kebab-case.WiFi QR Code GeneratorGenerate WiFi QR codes. Guests scan to connect. No password typing.
Browse by category
All 8 categoriesImage Convert, optimize, and edit images instantly with simple online tools. 24 tools PDF Create, convert, edit, and manage PDF files online for free. 13 tools QR Create and manage QR codes quickly and privately. 5 tools Calculator Free online calculators for math, finance, health, and everyday conversions. 1 tool Security Essential tools to keep your data safe and private. 1 tool Developer Encode or decode text to and from Base64 instantly. 3 tools Games Play simple, fun online games to relax and sharpen your skills. 3 tools Text Generate, format, and edit text for any use case 7 tools
Guides & articles
All articlesImage JPG to PNG: Why the PNG Is 6x Bigger, and How to Fix It Every converter writes the same truecolour PNG, so a 33 KB JPG comes back as 99 KB and a photo comes back six... 8 min readImage How to Extract Text From an Image Without Uploading It OCR fails for four specific reasons, and only one of them is the engine. Here is what decides whether a photo... 9 min readImage How to Combine Images Into One Picture Without Uploading Every image combiner works until your images are different sizes. Here is the exact rule that decides the outp... 8 min readImage How to Change an Image to 300 DPI Without Re-encoding It A JPEG can carry two different resolutions at once, and the one your print shop reads may not be the one the t... 7 min readText How to Compare Two Texts Online: Diff Without Uploading Learn how to compare two texts online. A line-by-line diff shows every added, removed and unchanged line, side... 7 min readText Why Is Your Typing Test Score Off? The Fixed-Sample Method Most free typing tests show a single WPM number and stop there. This guide explains the three WPM definitions,... 7 min read