Are my images uploaded?

No. The batch runs entirely in your browser. Image files are not uploaded to PictureConvert.

Why sequential instead of parallel?

Decoding many full-resolution images at once can crash mobile browsers. A sequential queue keeps memory predictable while still finishing typical batches quickly.

Does conversion remove metadata?

Canvas re-encoding usually strips EXIF/GPS. “Preserve when possible” only keeps metadata when no re-encoding is required. GPS-only removal is not available separately — it re-encodes like remove-all.

Can every file hit an exact KB target?

No. Some images need smaller dimensions or a different format. Failed targets can be retried with Allow resizing or a higher limit.

Is this image tool free to use?

Yes. You can use this tool directly in your browser for free, without account creation or hidden upload limits.

Do my files leave my device?

No. Processing happens locally in your browser, so your image files stay on your device and are not uploaded to PictureConvert. Website analytics (not image contents) are described in our privacy policy.

Bulk Image Processor — free & private

Convert, resize, compress, rename and strip metadata from image batches locally

CompressProcessed locallyInstantNo account

Local browser workflow

Process an entire batch of images in your browser: convert formats, resize, compress to quality or exact KB/MB targets, rename safely, and remove metadata — then download files or a ZIP. No image upload. Everything runs on your device — free, no account required, and image files are not uploaded to PictureConvert. Related: Exact File Size Image Compressor, Resize Image, and Remove EXIF Data.

Convert, resize, compress, rename, and strip metadata from a batch — all in your browser. Recommended limit: 30 files or 200.00 MB total.

Processing is sequential to reduce memory pressure. HEIC conversion uses the project decoder when available; AVIF/WebP encoding depends on your browser.

Drag & drop your image

or click to browse files

Supports: JPEG, PNG, WEBP, AVIF, HEIC, HEIF (max 100MB)

Processed locally
No image upload
No account required
Images not stored by PictureConvert

After you compress

Strip metadata before sharing, resize for social crops, or optimize for web delivery if the image is heading to a site.

Resize Image Remove EXIF Web Optimizer

Updated for 2026

Why browser memory matters

Each decoded photo can use tens of megabytes of RAM. Loading an entire folder at full resolution at once is a common cause of tab crashes on phones. This batch tool processes files sequentially, releases bitmaps after each encode, and recommends staying near 30 files or under about 200MB of input.

Conversion versus compression

Changing format (for example PNG → JPG) can shrink files and flatten transparency. Compression then reduces quality or aims at a KB/MB ceiling. Exact-size targets reuse the Smart Optimizer engine — they are not a second algorithm.

Resize before compression

When you set an explicit resize and also allow resizing for an exact-size target, the planned dimensions run first. Further shrinking only happens if the file is still above the effective target.

Metadata and re-encoding

Drawing to a canvas and exporting a new image usually strips EXIF and GPS. “Preserve when possible” only applies when no re-encoding is required. Selective GPS-only editing is not available in the browser — choose remove-all (or the GPS option, which re-encodes the same way) when privacy matters. For a dedicated single-file pass, see Remove EXIF.

HEIC support and ZIP downloads

HEIC/HEIF conversion uses the project’s existing decoder where it works; some environments still fail on unusual HEIC variants. ZIP archives are built only when you click download — the ZIP library is loaded on demand, which can take a moment for large batches.

Worked examples (illustrative)

Convert ~25 HEIC photos to JPG: choose the iPhone → JPG preset, review the name preview, process, then download a ZIP. Results vary by HEIC variant and device.
Resize and compress ~40 website images: use the Website preset (max width 1920, WebP, quality ~82) if your browser encodes WebP; otherwise switch to JPG.
Privacy cleanup on a folder: Privacy preset keeps format when possible and re-encodes to strip metadata without deliberate downsizing.

Updated July 2026

What this tool does

Select multiple images and run a combined workflow: format conversion, resize, quality or exact-size compression (reusing Smart Optimizer’s engine), filename patterns, and metadata stripping. Files are processed sequentially for memory safety and can be downloaded individually or as a ZIP. For one exact upload limit, use Smart Optimizer.

Trust and privacy are built into the workflow. Nothing leaves your device during processing, and there is no account setup. That makes it suitable for personal photos, client assets, product shots, and everyday creative work.

How to compress images

Upload or drag your file into the tool above.
Choose output settings such as quality, size, or page options.
Preview the result before you download.
Download the finished file for web, email, print, or sharing.

Tip: start with balanced quality settings rather than maximum compression so detail stays intact for web and sharing.

Key benefits

Stay near 30 files or under ~200MB total for smoother browser performance
Processing is sequential on purpose — safer on phones and laptops with limited RAM
Apply a preset, then edit any operation before you process
Exact-size targets reuse the same engine as Smart Optimizer
ZIP generation loads only when you request a ZIP download

Privacy note: no files leave your device. All compress steps run locally in your browser.

Batch processor vs single tools

If you’re using the bulk processor, you’re usually preparing many images with the same settings in one pass.
Feature	Bulk processor	Single tools
Files	Many in one queue	One at a time
Operations	Combined pipeline	Specialised
Exact size	Shared engine	Smart Optimizer
Download	ZIP or individual	Individual

Common use cases

Use this when you have a folder of photos to prepare for email, a website, a marketplace listing, or privacy cleanup — without uploading them. For platform-specific crops, use the social resizers. For HEIC singles, see HEIC to JPG.

After you finish, continue with related PictureConvert tools if you need another conversion, compression pass, crop, or metadata step — all without leaving the browser.

FAQs

Reviewed by the PictureConvert team

Last reviewed July 16, 2026. This page is maintained so recommendations stay practical and current for Bulk Process, with a focus on private, browser-local processing.