# ToolFlux

> ToolFlux is a free collection of privacy-first online tools — compress and convert images, convert HEIC photos, merge PDFs, turn images into PDFs, generate QR codes, count words, build passwords and convert text case. Every tool runs entirely in the user's browser; files are never uploaded.

## Tools

- [Image Compressor](https://luluboy168.com/image-compressor/): Shrink JPG, PNG, and WebP images without losing quality — right in your browser.
- [HEIC to JPG](https://luluboy168.com/heic-to-jpg/): Convert iPhone HEIC photos to JPG or PNG instantly, with no upload.
- [Image Converter](https://luluboy168.com/image-converter/): Convert between JPG, PNG, WebP, and AVIF formats locally in your browser.
- [Image Resizer](https://luluboy168.com/image-resizer/): Resize images by pixels, percentage, or preset — batch-process in your browser.
- [Merge PDF](https://luluboy168.com/merge-pdf/): Combine multiple PDF files into one document — your files never leave your device.
- [Split PDF](https://luluboy168.com/split-pdf/): Split a PDF by page ranges, into single pages, or every N pages — all in your browser.
- [PDF to JPG](https://luluboy168.com/pdf-to-jpg/): Convert each PDF page to a JPG or PNG image, right in your browser — no uploads.
- [Image to PDF](https://luluboy168.com/image-to-pdf/): Turn JPG and PNG images into a single PDF, entirely in your browser.
- [QR Code Generator](https://luluboy168.com/qr-code-generator/): Create custom QR codes for links, text, and Wi-Fi — free and private.
- [Word Counter](https://luluboy168.com/word-counter/): Count words, characters, sentences, and reading time as you type.
- [Password Generator](https://luluboy168.com/password-generator/): Generate strong, random passwords locally — nothing is ever sent to a server.
- [Case Converter](https://luluboy168.com/case-converter/): Convert text to UPPERCASE, lowercase, Title Case, and more in one click.
- [JSON Formatter](https://luluboy168.com/json-formatter/): Format, validate, and minify JSON with clear error messages — all in your browser.
- [Base64 Encoder / Decoder](https://luluboy168.com/base64/): Encode text to Base64 or decode it back — instantly and privately in your browser.
- [Hash Generator](https://luluboy168.com/hash-generator/): Generate SHA-256, SHA-1, SHA-384 and SHA-512 hashes from text — locally in your browser.
- [EXIF Remover](https://luluboy168.com/exif-remover/): Strip EXIF, GPS and metadata from photos — privately, without re-compressing the image.

## Articles

- [How to Make a QR Code (Links, Wi-Fi, and Text That Always Scans)](https://luluboy168.com/blog/how-to-make-a-qr-code/): How to make a QR code for a link, plain text, or Wi-Fi password — generated locally in your browser, with tips to make sure it reliably scans.
- [How to Create a Strong Password (What Actually Makes One Secure)](https://luluboy168.com/blog/how-to-create-a-strong-password/): How to create a strong password that resists cracking: why length and randomness beat symbol-swaps, and how to generate one locally in your browser.
- [A Free iLovePDF Alternative That Works in Your Browser](https://luluboy168.com/blog/free-ilovepdf-alternative/): Looking for a free iLovePDF alternative to merge and split PDFs? Combine and separate pages in your browser — no account, no install, no upload.
- [How to Format and Validate JSON (and Read the Errors)](https://luluboy168.com/blog/how-to-format-and-validate-json/): Format, validate, beautify, and minify JSON free in your browser. Learn the rules that break JSON, how to fix validator errors, and keep config private.
- [A Free Smallpdf Alternative for Private, In-Browser PDF Tools](https://luluboy168.com/blog/free-smallpdf-alternative/): Need a free Smallpdf alternative for converting PDFs and images without uploading them? Here is what runs 100% in your browser, what it can do, and where it stops.
- [A Free TinyPNG Alternative That Never Uploads Your Images](https://luluboy168.com/blog/free-tinypng-alternative/): Looking for a free TinyPNG alternative? Compress JPG, PNG, WebP and AVIF in your browser with no monthly cap and nothing ever uploaded to a server.
- [How to Combine Images Into One PDF (JPG & PNG, in Your Browser)](https://luluboy168.com/blog/how-to-combine-images-into-one-pdf/): Combine images into a single PDF for free. Turn JPG and PNG photos into one multi-page document directly in your browser — your files are never uploaded.
- [How to Resize an Image to Exact Pixel Dimensions](https://luluboy168.com/blog/how-to-resize-an-image/): Learn how to resize an image to exact pixel dimensions without losing quality, keep the aspect ratio, and batch a folder — all privately in your browser.
- [How to Change Text Case: UPPERCASE, lowercase, and Title Case](https://luluboy168.com/blog/how-to-change-text-case/): Learn when to use UPPERCASE, lowercase, Title Case and Sentence case, plus how to change text case in one click — all in your browser, nothing uploaded.
- [How to Split a PDF: Extract Pages the Easy Way](https://luluboy168.com/blog/how-to-split-a-pdf/): Learn how to split a PDF and extract pages by range, into single pages, or every N pages — free and entirely in your browser, so your files are never uploaded.
- [How to Count Words and Characters (and Why the Numbers Matter)](https://luluboy168.com/blog/how-to-count-words-and-characters/): Learn to count words and characters accurately, where exact limits matter, and how a free in-browser word counter keeps your draft text private and never uploaded.
- [How to Convert a PDF to JPG (Free, in Your Browser)](https://luluboy168.com/blog/how-to-convert-pdf-to-jpg/): Convert PDF to JPG or PNG without installing anything. Turn PDF pages into images directly in your browser — files are never uploaded and stay on your device.
- [How to Convert Image Formats (PNG, JPG, WebP) the Right Way](https://luluboy168.com/blog/how-to-convert-image-formats/): A practical guide to converting image formats — PNG to JPG, JPG to WebP and back — the transparency gotcha, batch converting, all private in your browser.
- [HEIC vs JPG: What's the Difference and Which Should You Use?](https://luluboy168.com/blog/heic-vs-jpg/): HEIC vs JPG explained simply: how they differ in quality, file size, and compatibility — plus when to convert HEIC to JPG and how to do it privately in your browser.
- [How to Reduce Image File Size Without Losing Quality](https://luluboy168.com/blog/reduce-image-file-size-without-losing-quality/): Learn how to reduce image file size without visibly losing quality — the difference between resizing and compressing, the best formats, and a free private tool to do it in your browser.
- [How to Merge PDF Files for Free (Without Uploading Them)](https://luluboy168.com/blog/how-to-merge-pdf-files-free/): Need to combine PDFs? Learn how to merge PDF files for free directly in your browser — no software, no sign-up, and your documents never get uploaded to a server.
- [PNG vs JPG vs WebP vs AVIF: Which Image Format Should You Use?](https://luluboy168.com/blog/png-vs-jpg-vs-webp-vs-avif/): A clear comparison of PNG, JPG, WebP, and AVIF — how they differ in quality, file size, transparency, and browser support, with a simple guide to choosing the right one.
- [Why Client-Side Tools Protect Your Privacy (And How to Spot Them)](https://luluboy168.com/blog/why-client-side-tools-protect-your-privacy/): Client-side tools process your files in your browser instead of uploading them to a server. Learn why that protects your privacy, how the technology works, and how to spot a tool that is truly local.