Is this HEIC to WEBP converter really free?

Yes. Up to 5 files at a time, no signup, no catch. The free tier adds a small watermark to image output — Pro ($9.99/mo or $49/yr) removes it, raises the file size limit to 500 MB, and unlocks unlimited batch conversion.

Are my files uploaded to a server?

No — and you can verify it yourself. Open DevTools → Network tab, then convert a file. You'll see zero upload requests. Everything runs right in your browser. We never see your files.

How long does conversion take?

Usually 1–3 seconds for a typical file. The very first conversion on a fresh page load may take 5–20 seconds while the converter engine loads — after that it's instant. Your CPU does all the work locally.

What is the file size limit?

Free: up to 10 MB per file, 5 files per batch. Pro: up to 500 MB per file, unlimited batch. If you're working with large videos or RAW photos, Pro is built for that.

Can I batch convert multiple HEIC files at once?

Yes — drop multiple files at once (or Ctrl/Cmd+click to select them) and they all convert in parallel. Free accounts handle up to 5 files per batch; Pro has no limit.

Will the image quality change after conversion?

It depends on the formats involved. Converting to a lossless format like PNG preserves every pixel exactly. Converting to a lossy format like JPEG or WebP applies compression — we default to 85% quality, which looks identical to the original for almost all images. You won't notice a difference unless you zoom in pixel-by-pixel.

Do you support batch image conversion?

Yes — drop multiple images at once and they all convert in parallel. Free accounts handle up to 5 at a time; Pro is unlimited. Download everything as a single ZIP when you're done.

How private is this converter?

Completely private — by design, not policy. There is no upload endpoint. Files are processed right inside your browser tab and disappear the moment you close it. We collect only anonymous page-view counts; your file content is never seen or stored.

HEIC to WebP Converter — Free, Online, No Upload

How to convert HEIC to WEBP online

1
Drop your HEIC file
Drag and drop your High Efficiency Image Container file onto the converter, or click to browse your files. You can select up to 5 at once. Nothing leaves your device — conversion happens right here in the browser.
2
Hit Convert — it happens locally
Click Convert and watch it go. There's no upload, no server queue, no waiting. The converter runs High Efficiency Image Container → Web Picture Format entirely in your browser tab. Most files finish in 1–3 seconds.
3
Download your WEBP
Your Web Picture Format file is ready. Click Download, or grab a ZIP if you converted a batch. Close the tab and everything disappears — no copies kept anywhere.

HEIC vs WEBP: format overview

HEIC

High Efficiency Image Container

Apple (based on MPEG HEIF/ISO spec) · 2017

Compression: lossy
Color depth: 12-bit
Transparency: Yes

✓ 50% smaller than JPEG at equivalent quality
✓ Supports 16-bit depth and HDR
✗ Poor browser support

WEBP

Web Picture Format

Google (On2 Technologies acquisition) · 2010

Compression: hybrid
Color depth: 8-bit
Transparency: Yes

✓ 30% smaller than JPEG, 26% smaller than PNG
✓ Supports both lossy and lossless

HEIC magic bytes: 00 00 00 18 66 74 79 70 68 65 69 63

WEBP magic bytes: 52 49 46 46 xx xx xx xx 57 45 42 50

Why convert HEIC to WEBP?

HEIC files from iPhone are efficient for on-device storage but create compatibility problems the moment they leave the Apple ecosystem. Uploading HEIC photos to a website, sharing them through a web form, or using them in a web-based design tool like Figma or Canva typically results in errors or blank placeholders. Windows users receiving HEIC files by email or through shared folders often cannot open them without installing a separate codec from the Microsoft Store.

WebP resolves the compatibility issue while preserving the compression efficiency that makes HEIC attractive in the first place. All major browsers support WebP, and platforms built for web content delivery expect it. Google Photos displays WebP natively, Squarespace and Webflow handle WebP images without conversion, and web developers can serve WebP directly from AWS S3 or Cloudflare without additional processing. Switching from HEIC to WebP means your images work everywhere on the modern web.

Converting HEIC to WebP produces files that are visually comparable to the original at equivalent quality settings. WebP supports both lossy and lossless modes, so you can match the quality level appropriate to your use case. File sizes are slightly larger than HEIC in most cases but significantly smaller than equivalent JPEG files. If the original HEIC contains HDR or wide-gamut color data, standard WebP will clip that to the sRGB range, so for professional photography workflows, check your color space requirements before batch converting an entire library.

Quality & file size: HEIC to WEBP

Typical file sizes: HEIC 1.5–3 MB → WEBP 1–3 MB.

Both HEIC and WEBP use lossy compression. We transcode at high quality settings (equivalent to WEBP's recommended web quality) to minimize generational loss.

Color depth: HEIC supports 12-bit, WEBP supports 8-bit.

Transparency: HEIC supports transparency. WEBP preserves transparency.

Frequently asked questions

Privacy: how FormatDrop handles your files

Your HEIC files are converted 100% inside your browser. They are never uploaded to our servers, never stored, and never seen by anyone other than you. This isn't a privacy policy claim — it's an architectural guarantee: our server has no endpoint that receives file bytes.