Free Online Image Tools (Private, Batch, No Upload)
Convert HEIC and WebP/AVIF, compress images to exact KB targets, resize for social media, combine photos into PDF, remove backgrounds, and set lossless 300 DPI headers—100% in your browser.
Private tools for files that shouldn't leave your computer.
Fifteen free utilities across 4 categories—Image Tools Suite, Labels & Print, AI & Documents, and Data & Developer. They run in your browser, so your files are never uploaded.
Verifiable Local Privacy & Binary Precision
Most online converters upload your confidential shipping labels, family photos, and CSV databases to remote server queues. Vexolora processes your files directly inside your browser's volatile memory (RAM) using standard Web APIs (ArrayBuffer, DataView, DOMParser, and HTML5 Canvas).
- ✓ Zero Server File Storage: Core tools never upload your files—verify it yourself in your browser's Network tab.
- ✓ True Binary Header Editing: Our 300 DPI Scrubber writes 9-byte PNG
pHYschunks and JPEGJFIFheaders without re-encoding pixels. - ✓ Batch & ZIP Ready: Process up to 100 images at once and download a single standards-compliant ZIP archive.
Connected Utilities for Real Tasks
Preview Zebra ^XA…^XZ labels at 203/300 DPI and export exact 4×6 inch thermal PDFs.
Set lossless 300/600 DPI headers on transparent PNGs and scrub hidden GPS EXIF coordinates.
Batch convert HEIC and WebP/AVIF to JPG/PNG, compress under 100 KB, or remove white backgrounds.
Convert documents to Markdown, strip U+200B Unicode bytes, and query CSV/Parquet with PII masking.
Latest Articles & Tutorials
Three steps. No upload.
Pick a tool
Choose from nine tools, or search for the job you need done.
Drop in your file
Your file opens right in your browser. It never leaves your device.
Download the result
Save your finished file, or send it straight to another Vexolora tool.
How to Use the Image Tools Suite
1. Step 1: Select the Image Utility for Your Task
Choose from 7 dedicated tools: HEIC to JPG/PNG, WebP/AVIF Converter, Image Compressor (Target KB), Image Resizer, JPG/PNG to PDF, Background Remover, or 300 DPI Scrubber.
2. Step 2: Drag and Drop One or Up to 100 Photos
Drop files from your computer or phone, click Choose files, or paste from your clipboard (Ctrl+V). Magic-byte sniffing verifies the true format automatically.
3. Step 3: Customize Format, Quality, Dimensions, or Page Size
Select your output format (JPG/PNG/WebP/PDF), target KB ceiling (50KB/100KB/200KB), social media pixel preset, or background fill.
4. Step 4: Click Generate / Process Result
Click the action button to run the 3.5-second local browser processing and verification pass.
5. Step 5: Inspect Before/After Size & Visual Preview
Check the checkerboard preview and per-file byte savings audit in the queue.
6. Step 6: Download Individually, Save Batch ZIP, or Chain to 300 DPI
Download individual files, click "Download ZIP" for a single batch archive, or click "300 DPI ➔" to set a lossless 300 DPI print header.
Frequently Asked Questions
1. Are my personal photos or ID scans uploaded to Vexolora servers?
No. Every tool in the Vexolora Image Tools Suite processes images 100% locally inside your browser. Only the optional HD API mode on the Background Remover sends a file to our server route when explicitly selected.
2. Which 7 tools are included in the Vexolora Image Tools Suite?
The suite includes: (1) HEIC to JPG/PNG Converter, (2) WebP/AVIF to JPG/PNG Converter, (3) Target-KB Image Compressor, (4) Pixel & Social Image Resizer, (5) Multi-Photo JPG/PNG to PDF Converter, (6) Background Remover, and (7) Lossless 300 DPI & EXIF Scrubber.
3. Can I batch process multiple images and download a single ZIP file?
Yes! Drop up to 100 images at once and click "Download ZIP" to get a standards-compliant PKZIP archive generated directly in your browser.
4. How does magic-byte file signature detection work?
Instead of trusting the filename extension, our sniffer inspects the raw container header bytes (ftyp for HEIC/AVIF, RIFF....WEBP for WebP, 89 50 4E 47 for PNG, FF D8 FF for JPEG).
5. Why do portrait phone photos stay upright in Vexolora tools?
Our decoding pipeline reads the EXIF orientation flag (imageOrientation: from-image) so vertical iPhone and Android photos never come out sideways.
6. What happens to transparent areas when converting PNG or WebP to JPG?
Because JPG does not support alpha transparency, transparent regions are cleanly filled with your chosen background colour (pure white #FFFFFF by default).
7. How can I set a 300 DPI print header after resizing or removing a background?
Click the "300 DPI ➔" button in any image tool to send your processed image directly into our Lossless 300 DPI & EXIF Scrubber.
8. Are there any watermarks, credit limits, or resolution downscaling?
Never. All outputs keep their full pixel resolution with zero watermarks and no sign-up required.
9. Does the Image Tools Suite work on iPhone, iPad, Android, Windows, and Mac?
Yes. The entire suite runs in modern mobile and desktop browsers without installing any software or extensions.
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Features & Capabilities
100% In-Browser Privacy
Your photos are decoded and encoded on your device and never uploaded to a server.
Batch Processing & ZIP Export
Drop up to 100 photos at once with per-file progress and single-click ZIP archive download.
Magic-Byte Container Sniffing
Detects real file headers (HEIC ftyp, WebP RIFF, AVIF ftyp, PNG, JPEG) rather than relying on file extensions.
Automatic EXIF Orientation Fix
Applies portrait smartphone rotation flags during decoding so photos never come out sideways.
Transparent-to-White JPG Fill
Fills transparent PNG/WebP regions with white (or your chosen colour) when converting to JPG.
Seamless 300 DPI Chaining
Send any converted, resized, or cutout PNG straight into the Lossless 300 DPI & EXIF Scrubber.
Core Benefits
✓ Verifiable Local Privacy
Keep family photos, ID scans, and unreleased product photography on your own device.
✓ Zero Upload Wait Times
Because files are not uploaded over the internet, batch conversions start in milliseconds.
✓ No Watermarks or Sign-Up Walls
Export full-resolution JPG, PNG, WebP, and PDF files for free.
✓ Works Across Desktop & Mobile
Use the suite on Windows, Mac, iPhone, iPad, and Android browsers.
Free Online Image Tools (Private, Batch, No Upload) — Complete Guide & Technical Documentation
Photos often contain faces, home addresses, and embedded GPS location data. While large cloud converters upload your personal pictures to remote servers, every core utility in the Vexolora Image Tools Suite processes your files locally on your device using HTML5 Canvas, ArrayBuffers, and Web Workers.
The Vexolora Image Tools Suite brings together seven dedicated browser utilities designed for photographers, ecommerce sellers, students, and developers: HEIC to JPG/PNG Converter, WebP/AVIF to JPG/PNG Converter, Target-KB Image Compressor, Social & Pixel Image Resizer, Multi-Photo JPG/PNG to PDF Builder, Client-Side Background Remover, and the Lossless 300 DPI & EXIF Scrubber.