FAQ

Is image processing safe? Do you have to pay? Let's clear that up

Will my photo get uploaded without me knowing? Do I need to sign up or pay? What formats are supported? These are the questions most people want answered the first time they open an image editing website. We've organized 38 real questions into 8 categories — privacy & security, pricing & accounts, formats & quality, batch processing, background removal, device compatibility, troubleshooting, and copyright & compliance. Jump to the category you need, or use the search box below to find an answer quickly.

8question categories
38real questions answered
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Are images uploaded anywhere?

No — everything is processed locally in your browser. Images are never uploaded to or stored on any server.

Do I need to pay or sign up?

No — all 15 tools are completely free, with no sign-up, no login, and no usage limits.

Can I batch process images?

Yes — 8 high-frequency tools like background removal, compression, and format conversion all support batch mode for processing multiple images at once.

Does it work on desktop and mobile?

Yes — it works right in your browser with no software or plugins to install.

01 / 08

Privacy & Data Security

On an image processing site, the first thing people want to know is whether their photos are safe — here's exactly how we handle processing and data retention.

Are my uploaded images stored on your servers?

No. Every Image8K tool runs on technologies built into your browser, like Canvas and WebAssembly. Reading, processing, and exporting your images all happen on your own device — we don't have a server that receives or stores your images, so there's technically no way for anything to be “saved on the backend.”

Is the background removal tool also processed locally?

Yes. Detection and processing for background removal both happen right in your browser — your image itself is never sent to any server. The first use may require an internet connection to download the processing component once, after which it's cached by your browser and doesn't involve your image content at all.

If I close the page after processing, does any trace of my image stay on my device?

No. The image only exists in the current page's memory, and closing or refreshing the page clears that data immediately. We don't write extra cookies or local storage to retain your original image content.

Do you use my uploaded images for anything else?

No. Since image processing happens entirely on your local device, the image never gets transmitted to us in the first place, so it couldn't be used for any other purpose.

Can I use this without an internet connection?

You'll need a connection the first time you open the page, and the first time you use features that download a processing component (like background removal). Once loaded, the image processing itself relies on local computation, but we don't currently offer a dedicated offline mode — we recommend staying connected for the most reliable experience.

02 / 08

Pricing & Accounts

No need to worry about hitting a paywall halfway through — here's our current pricing and account policy.

Is it completely free to use right now?

Yes — all 15 Image8K tools are currently free to use, with no charge whatsoever.

Do I need to create an account or log in to use it?

No. Just open the page, pick a tool, and start using it — no account, no phone number, no login. Download your result as soon as it's done.

Is there a limit on how many times I can use a tool or how many images I can process?

There's currently no usage limit — you can use any tool as many times as you like, on as many images as you like. We recommend keeping individual images under 20MB for faster processing and a more stable experience.

Will you suddenly start charging, or show a paywall mid-task?

All features are currently free with no paywall. If more advanced features are introduced down the line, we'll clearly label them on the relevant tool page in advance — you won't be interrupted mid-task by a sudden charge.

03 / 08

Formats & Quality

Can't open a HEIC file? Not sure whether to pick PNG or JPG? Worried compression will hurt quality? Here's everything you need to know about formats.

Common Image Format Reference

FormatDescription
JPGThe most common photo format — best compatibility, smaller file size after compression
PNGSupports transparent backgrounds — great for icons, screenshots, and background-removed images
WebPA web-optimized format — usually smaller than JPG/PNG at the same quality level
HEICThe default format for iPhone/iOS camera photos — often can't be opened directly on non-Apple devices or websites
AVIFA newer, high-compression format — smaller file size at similar quality
BMPWindows bitmap format — larger file size, rarely used for online transfer
GIFCommonly used for stickers and simple animations
My iPhone photos are in HEIC and won't open — which tool do I need?

Use the “Convert Format” tool to turn HEIC into JPG or PNG. Once converted, almost any device or platform will be able to open and recognize it.

Will compressing an image noticeably hurt the quality?

You control how much compression happens: drag the quality slider to set your own compression level (more compression means more visible quality loss), or use “target size” mode, where the tool automatically finds the best balance between quality and file size within your specified limit, minimizing visible quality loss.

Should I choose PNG or JPG?

Choose PNG if you need a transparent background (like a background-removed image or a logo); choose JPG for regular photos where transparency isn't needed, since it produces smaller files. If you want a balance of both size and quality, converting to WebP is also an option.

Does converting the format or compressing an image change its resolution (pixel dimensions)?

No. Format conversion and compression only change how the file is encoded and its file size — they don't change the pixel dimensions of the image. If you need to change the dimensions, use the “Resize Image” tool.

Can every device open the WebP or AVIF images I export?

Most mainstream browsers and mobile photo apps now support WebP and AVIF. If you need to send the file to someone using an older device or software, it's safer to convert to the more widely compatible JPG or PNG.

04 / 08

Batch Processing & File Limits

Do you have to process images one at a time? Here's which tools support batch mode, plus recommendations on file count and size.

Tools that currently support batch mode

Remove BackgroundConvert FormatCompress ImageImage to PDFResize ImageRotate / FlipAdd WatermarkEXIF Viewer / Remover
Which tools support batch processing?

Background removal, format conversion, image compression, image to PDF, resizing, rotate/flip, watermarking, and EXIF viewer/remover — these 8 high-frequency tools all currently include a batch mode, letting you select multiple images and process them all in one go.

What's the maximum number of images I can select at once for batch processing?

The exact number varies by tool and by your browser's performance, and the page will show relevant guidance. For stability, we recommend keeping the batch size reasonable and each image under 20MB — this will keep processing fast and reliable.

How do I download the results after batch processing?

You can download images individually, or download all of them at once as a single zip file — just unzip it after downloading to see every result.

If one image fails during batch processing, does it affect the others?

No. Each image in a batch is processed independently. If one image fails due to a format issue or corruption, it won't affect the processing or downloading of the rest.

Will processing a lot of large images freeze my browser?

Large image processing already runs in a Web Worker to avoid blocking the page. That said, your browser still uses your device's memory and processing power, so if you're processing too many images at once or the files are very large, we recommend processing in smaller batches, or shrinking file sizes first with “Compress Image” before batch processing.

05 / 08

Background Removal

Questions about how subject detection works, processing speed, and result quality all live here.

How does background removal identify the subject without uploading the image?

Both detection and the actual cutout computation happen locally in your browser — the image itself never needs to be uploaded to any server.

Why is the first use of background removal slower?

The first use needs to download a processing component. Once downloaded, it's cached by your browser, so subsequent uses in the same browser won't need to re-download it and will be noticeably faster.

The cutout isn't clean — jagged edges or leftover background. What can I do?

Try using a source photo where the subject and background have clearly different colors and brightness — fine details like hair strands will look more natural that way. Even lighting and a clear subject usually produce better results. You can also switch to a higher-quality model in the dropdown on the tool page and try again.

What kinds of subjects does background removal support?

It supports automatic detection and background separation for common subjects like people and products — great for swapping ID photo backgrounds or creating white-background ecommerce photos. After removing the background, you can switch to a solid color, a transparent background, or upload your own image as the new background.

What determines processing speed, and does it vary a lot between devices?

Speed mainly depends on your device's performance and the image size: a decent computer usually finishes in a few seconds, while some phones and older computers will take longer — that's normal.

06 / 08

Device & Browser Compatibility

Do you need to install an app? Does it work on mobile? Will it run on an old computer? Here's everything about device compatibility.

Do I need to install any software or browser extensions to use this?

No — Image8K is a pure web app. Just open the URL in your browser and use it directly, with no client software or extensions to install.

Which browsers are supported?

We recommend using a mainstream browser updated within the last couple of years — Chrome, Edge, Safari, or Firefox — for full feature support. Older browser versions may not support some features that rely on newer web capabilities.

Is the mobile browser experience the same as on desktop?

Core functionality is identical, but the interface adapts to smaller screens — for example, settings panels collapse into a bottom action bar. For precision tasks like cropping or annotating, we recommend zooming in first, or switching to a tablet or computer for finer control.

Will an older computer or phone struggle to run this?

Most basic tools (compression, cropping, format conversion, etc.) are lightweight and run fine even on older devices. Heavier features like background removal will noticeably slow down on lower-performance devices — that's normal, just give it a bit more time to finish.

Does it work properly on a tablet?

Yes — tablet browsers display a layout somewhere between mobile and desktop, and touch interaction is fully supported. Tap targets like crop handles and mosaic brush controls have also been optimized for touch.

07 / 08

Usage & Troubleshooting

Upload not responding, page frozen, or downloaded file won't open? Check these troubleshooting steps first.

My image upload isn't responding, or the upload failed. What should I do?

First check whether the current tool supports your image format and whether the file is under 20MB. If the file is too large, try compressing it with “Compress Image” first, then re-upload. You can also try refreshing the page or switching browsers.

The page is stuck, or processing is taking forever. What should I do?

Features like background removal need to download a processing component the first time, which can take longer on a slow connection — please be patient. If it's unresponsive for a long time, try refreshing the page and starting over; this is usually caused by network fluctuations or an oversized image.

The downloaded file won't open. What should I do?

First check that the download completed fully. If it's a zip file from a batch download, you'll need to unzip it first to view the images inside. If it still won't open, try processing and downloading it again.

I made a mistake — can I undo it or start over?

Most tools let you adjust parameters or re-select an image at any time without refreshing the page. Since the original image is never modified, you can always re-upload it and start fresh.

The page layout looks broken or icons aren't displaying correctly. What should I do?

Try a hard refresh to clear your browser cache, or switch to a mainstream browser and reopen the page. If the problem persists, feel free to let us know using the contact info at the bottom of the page.

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Check out the full guide, or contact us directly

The “How to Use” page has more detailed step-by-step instructions, the “Use Cases” page organizes tool combinations by real scenarios, and you can always contact us directly with a specific question.

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