OmniKit35 tools
self-hosted toolkit

One kit for
every quick fix.

35 tools for images, PDFs and utilities — fast, private, processed in memory. No accounts, no upload limits, nothing stored.

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In-memory processingPrivate by defaultSelf-hostable

Image Tools

13 tools

Convert, resize, crop, watermark, and more — all in your browser

Image Converter

Convert between PNG, JPG, WebP, and AVIF formats

imagesync

Image Resize

Resize images by exact dimensions or fit-to-box

imagesync

Image Compress

Reduce file size while keeping acceptable quality

imagesync
local

Image Crop

Drag a box over your image to crop it visually — no typing coordinates

imagesync

Image Rotate

Rotate an image by any angle

imagesync

Image Flip

Mirror an image horizontally or vertically

imagesync

Grayscale

Convert an image to black and white

imagesync

Image Blur

Apply a Gaussian blur to an image

imagesync

Image Watermark

Stamp text over an image

imagesync

Strip Metadata

Remove EXIF, GPS, and other embedded metadata

imagesync

Color Adjust

Tune brightness, saturation, and hue

imagesync

Watermark Remover

Blur out a rectangular region to erase a watermark or logo

imagesync
local

Background Remover

Remove image backgrounds with AI — runs entirely in your browser, nothing uploaded

imagesync

PDF Tools

13 tools

Merge, split, rotate, watermark, and transform PDF documents

PDF Merger

Combine multiple PDF files into one document

pdfsync

PDF Splitter

Extract a page range from a PDF document

pdfsync

PDF Rotate

Rotate every page of a PDF

pdfsync

Delete PDF Pages

Remove specific pages (e.g. 1,3,5-7)

pdfsync

Images to PDF

Combine JPG/PNG images into a single PDF

pdfsync

Add Page Numbers

Stamp page numbers onto a PDF

pdfsync

PDF Watermark

Add a diagonal text watermark to every page

pdfsync

Extract Text

Pull all text out of a PDF into a .txt file

pdfsync
local

PDF to Images

Render each PDF page to a PNG (zipped)

pdfsync

Compress PDF

Reduce PDF file size by re-compressing embedded images

pdfsync

Unlock PDF

Remove the password from a PDF you already have access to

pdfsync

Organize Pages

Reorder PDF pages by specifying the new page order

pdfsync

Repair PDF

Attempt to recover a corrupted or malformed PDF

pdfsync

Utilities

9 tools

QR codes, hashing, JSON, Base64, color, JWT, regex, and Markdown — all in your browser

QR Code Generator

Generate a QR code PNG from text or a URL

utilitysync
local

JSON Formatter

Validate, pretty-print, or minify JSON — instantly in your browser

utilitysync

Hash Generator

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes

utilitysync
local

URL Encoder / Decoder

Percent-encode or decode URLs and query strings — instantly in your browser

utilitysync
local

Base64 Encoder / Decoder

Encode text to Base64 or decode it back — handles full Unicode

utilitysync
local

Color Converter

Convert colors between HEX, RGB, and HSL with a live preview

utilitysync
local

JWT Decoder

Inspect a JSON Web Token's header and payload — no secret key needed

utilitysync
local

Regex Tester

Test regular expressions against sample text with live highlighted matches

utilitysync
local

Markdown Preview

Write Markdown and see it rendered live, side by side

utilitysync

⚠ downloader tools are for personal use only — may violate third-party ToS.