Axidus
Excalibar

Bulk image work, without the 12 tabs.

A lightweight desktop sidebar that converts, resizes, and renames images in bulk. Tuned for Shopify, Amazon, Etsy, and the rest. 100% local. No uploads, no APIs, no waiting.

Get ExcalibarSee it in action
macOSWindows
4.9 · 1,247+ users
Excalibar
ConvertOptimizeResizeRename
PresetShopify product
5 files
  • listing-hero.jpgShopify · 2048x2048
  • listing-detail-1.jpgShopify · 2048x2048
  • listing-detail-2.jpgShopify · 2048x2048
  • listing-detail-3.jpgShopify · 2048x2048
  • listing-detail-4.jpgShopify · 2048x2048
Optimizing 13 of 1878%

The problem

Image work is a thousand tiny papercuts.

If you handle product photos, listings, or asset drops more than once a week, you already feel this.

The 12-tab tax

Squoosh in one tab, TinyPNG in another, a renamer somewhere, plus that one Photoshop action you keep forgetting how to run.

Uploading work that should never leave your laptop

Client RAWs, NDA-bound product shots, drafts you don't want indexed by some free web tool's ad partner.

Format and size guesswork

Shopify wants 2048 squares. Amazon wants something else. Etsy is a different story again. Nobody remembers the rules.

What it does

Six tools you already use, in one keystroke.

Excalibar bundles the bulk-image jobs you keep cobbling together. No new workflow, just a faster version of the one you have.

Convert thousands of images at once

PNG, JPG, WEBP, AVIF. Drop a folder, pick a format, get the whole batch back in seconds.

Ship listings faster with platform presets

Built-in recipes for Shopify, Amazon, Etsy, eBay, and WordPress handle dimensions, quality, and format for you.

Resize a folder in one pass

Fixed dimensions, percentage scaling, or max-width caps. Crop-to-fill, padding, retina presets, all there.

Rename batches without a spreadsheet

Sequential numbering, prefixes, suffixes, find and replace, date stamps, slug formatting. Set the pattern, hit go.

Right-click any folder to start

Native Finder and Explorer integration. "Optimize with Excalibar" lives in your context menu, no app to launch.

Local-first by default

No cloud round-trips, no uploads, no API keys. Files are processed on your machine, full stop.

Platform presets

Stop guessing dimensions. Pick a store.

Every marketplace has its own rules for image size, format, and quality. Excalibar ships with the recipes built in. Drop your folder, pick the store, get listing-ready files.

Shopify

Preset
Dimensions
2048 x 2048
Format
WEBP · q82
Result
~68% smaller

Square product shots, ready for the editor.

Amazon

Preset
Dimensions
2000 x 2000
Format
JPG · q90
Result
Pure white BG

Hits the 1600 zoom requirement, stays under 10MB.

Etsy

Preset
Dimensions
2700 x 2025
Format
JPG · q85
Result
4:3 aspect

Sized for Etsy's wider 4:3 frame so detail shots fill the listing.

eBay

Preset
Dimensions
1600 x 1600
Format
JPG · q85
Result
Zoom-eligible

Square files that clear eBay's 1600px zoom threshold every time.

WordPress

Preset
Dimensions
Max 1920w
Format
WEBP · q80
Result
Responsive set

Generates the full responsive size set in one go.

Custom

Preset
Dimensions
Anything
Format
Any format
Result
Save as preset

Save your own recipe and reuse it from the right-click menu.

How it works

Three steps. No app to launch.

Right-click any folder. The sidebar slides in with the right preset pre-loaded, processes locally, and tucks itself away when it's done.

  1. Step 01

    Right-click a folder

    From Finder, Explorer, or anywhere a file lives. Pick "Optimize with Excalibar".

  2. Step 02

    Sidebar slides in

    Pre-loaded with your files and the right preset for the job. Adjust if you want, or just confirm.

  3. Step 03

    Done in seconds

    Files are processed locally and dropped back in the folder. Sidebar tucks itself away until next time.

Excalibar
ConvertOptimizeResizeRename
PresetWEBP at q82
5 files
  • hero-shot-01.pngPNG -> WEBP
  • hero-shot-02.pngPNG -> WEBP
  • hero-shot-03.pngPNG -> WEBP
  • product-front.tiffTIFF -> AVIF
  • product-back.tiffTIFF -> AVIF
Converting 32 of 6054%

Built for

Anyone who handles more than ten images at a time.

Different jobs, same shared bottleneck. If part of your week goes to wrangling images, Excalibar gives that part back.

Ecommerce sellersListings ready in the format every store wants.
DesignersShip handoff-ready exports in the right size, fast.
DevelopersLocal image pipeline, no Node script to maintain.
PhotographersResize and rename a shoot before it touches the cloud.
Social media managersCrop, resize, and bulk-rename for every platform in one pass.
Content teamsAsset organization that keeps up with the publishing schedule.

Why people pick it

Local-first. Always was.

Excalibar is built to do one job well, on your machine, without asking you to upload anything anywhere.

  • 100% local

    No cloud, no APIs, no telemetry on your file contents. Files never leave your machine.

  • macOS and Windows

    Native sidebar on both, with right-click integration in Finder and File Explorer.

  • Built to be invisible

    Low memory, fast startup, dormant until you need it. Skips the bloated-editor tax.

  • Cancel anytime

    Monthly or annual. Manage from the customer portal. No contracts, no "talk to sales."

Pricing

Fair pricing, plainly stated.

Pay monthly, save with annual, or own it for life. One license, every Excalibar update. Cancel any time from the customer portal.

Monthly

$4.99/ month

Pay as you go. Cancel any time, keeps working through the period you paid for.

  • Bulk conversion
  • Platform presets
  • Bulk resize
  • Bulk rename
Subscribe monthly

Annual

$39.99/ year

Two months free. Locks the price in, helps us plan.

  • Bulk conversion
  • Platform presets
  • Bulk resize
  • Bulk rename
Subscribe annually

Lifetime

Own it forever
$79.99/ one-time

One payment, every future update. Buy once, own it forever.

  • Bulk conversion
  • Platform presets
  • Bulk resize
  • Bulk rename
Get lifetime access
Cancel any timeBilling handled by PolarTax included where required

FAQ

Questions, mostly answered.

Does Excalibar upload my files anywhere?

No. Every conversion, resize, and rename runs locally on your machine. There is no cloud step, no API call, and no telemetry that includes file contents.

Which platforms does it run on?

macOS and Windows, with native context-menu integration on both. The sidebar UI is consistent across operating systems.

What image formats are supported?

Read and write for PNG, JPG, WEBP, and AVIF. TIFF and HEIC inputs convert to any of the above. RAW formats can be brought in via a system preview pipeline.

Is there a file size limit?

No artificial cap. The only limit is your machine. Excalibar streams large batches so memory stays low even on a 60-file shoot.

How does pricing work?

Monthly or annual subscription. Annual saves a meaningful amount versus paying month to month. Both are managed through the customer portal, cancel anytime.

Can I use it for client work?

Yes. The license covers commercial use on the machines you sign in on. If you have a team, talk to us and we'll set up a team plan.

Excalibar

Stop juggling tabs. Start shipping.

One sidebar. Every bulk image job. 100% local. Try it for a month, cancel anytime from the customer portal.

Get ExcalibarTalk to us
Risk
Cancel anytime, no questions.
Setup
Install, sign in, right-click. Done.
Privacy
Files stay on your machine.
Where
macOS · Windows