How to Make a QR Code (Links, Wi-Fi, and Text That Always Scans)
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.
The ToolFlux Blog
Practical guides on working with images, PDFs, and text — and on why doing it in your browser keeps your files private. No fluff, just useful answers.
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How to Create a Strong Password (What Actually Makes One Secure)
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.
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A Free iLovePDF Alternative That Works in Your Browser
Looking for a free iLovePDF alternative to merge and split PDFs? Combine and separate pages in your browser — no account, no install, no upload.
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How to Format and Validate JSON (and Read the Errors)
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.
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A Free Smallpdf Alternative for Private, In-Browser PDF Tools
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.
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A Free TinyPNG Alternative That Never Uploads Your Images
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.
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How to Combine Images Into One PDF (JPG & PNG, in Your Browser)
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.
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How to Resize an Image to Exact Pixel Dimensions
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.
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How to Change Text Case: UPPERCASE, lowercase, and Title 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.
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How to Split a PDF: Extract Pages the Easy Way
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.
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How to Count Words and Characters (and Why the Numbers Matter)
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.
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How to Convert a PDF to JPG (Free, in Your Browser)
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.
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How to Convert Image Formats (PNG, JPG, WebP) the Right Way
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.
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HEIC vs JPG: What's the Difference and Which Should You Use?
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.
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How to 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.
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How to Merge PDF Files for Free (Without Uploading Them)
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.
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PNG vs JPG vs WebP vs AVIF: Which Image Format Should You Use?
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.
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Why Client-Side Tools Protect Your Privacy (And How to Spot Them)
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.