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Perunlight

Svarn · Tool + guide bundle

Export Aseprite slices with a file manifest

Export Aseprite slices and frames with a checked manifest.

$4.99 USD · one-time purchase

Host application · opening steps

Extract the inner preview ZIP. In Aseprite 1.3 open Edit > Preferences > Extensions > Add Extension and select app/svarn-0.1.0.aseprite-extension; restart. Open a saved RGB or Indexed document with static rectangular slices, then use File > Svarn: Batch Export Slices.

Download: ZIP with the described tool and instructions. Check compatibility & limits.

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View the illustrated example. Read the illustrated guide and inspect the sample files free of charge. The complete program is supplied in the purchased download. Previously obtained copies retain their included license rights.

Svarn historical 0.1.0 screen showing a planned six-file export preview in Aseprite.
Historical Svarn 0.1.0 in-app preview: two slices across three frames are planned as six files. The screen shows Ready and an Export button; it does not verify completed PNG exports or physical/game use. View full size

See it in use

Export two pickup-icon slices

A screenshot walkthrough with fictional practice data. Select a step to explore.

1. Start with

Export two pickup-icon slices

The guide has a fictional 32 × 16 coin-and-gem image.

Sample files and contents

examples/svarn/pickups.png (a fictional 32 × 16 image with a coin and a gem) and examples/svarn/slices.csv, which lists the two slices to draw: coin at x 0, y 0, 16 × 16 and gem at x 16, y 0, 16 × 16.

Practice files and guides are free. The complete app is included only where the product page says so.

2. In the app

Svarn running in Aseprite, previewing coin_01.png and gem_01.png from the guide’s two slices.
Actual Svarn extension from the current guide bundle, running in Aseprite 1.3.18.6-dev on Linux. Two static slices were created from the guide coordinates using a setup script. Enlarge image ↗

Try it in three steps

  1. Open the image in licensed Aseprite.
  2. Draw and name the two 16 × 16 slices, then save the sprite.
  3. Run Svarn Preview before choosing Export.
Show every click and setting
  1. In Aseprite open examples/svarn/pickups.png.
  2. With Aseprite's Slice tool draw the two slices from slices.csv and name them coin and gem in each slice's properties.
  3. Save the sprite with File › Save As… as pickups.aseprite (the .aseprite format keeps slices).
  4. From the File menu choose Svarn: Batch Export Slices... and keep All slices, All frames, profile slice_frame and Frame digits 2. Click Use document folder, then Preview, then Export.

3. The result

Inspect the result

The export produced coin_01.png and gem_01.png, each 16 × 16 pixels. Both match their original guide image regions exactly. Select an enlarged icon to download the actual PNG.

Svarn’s native Export complete dialog confirms two files written and verified.
The native export completed with two of two files. The downloadable PNGs were also decoded and compared with the original guide pixels; this validates this example only. Enlarge image ↗
What to check in the practice result

Preview plans 2 PNG files (coin, frame 1 -> coin_01.png and gem, frame 1 -> gem_01.png). Export creates a folder pickups-slices-001 next to pickups.aseprite containing coin_01.png and gem_01.png (16 × 16 each) and svarn-manifest.json with status complete; the Status row reads Exported and verified 2 of 2 files in pickups-slices-001. Exporting again creates pickups-slices-002 instead of overwriting.

A static, one-frame guide example exported on the existing Linux development build of Aseprite. The extension reports 0.1.0 inside guide bundle 0.1.1. This does not establish other platform or animation support.

What it helps you do

Export saved Aseprite slices across frames into PNGs with a manifest of dimensions and file hashes for a clear handoff.

What is in your download

  • The original tool ZIP, preserved inside the download bundle.
  • Installation and first-result instructions.
  • A worked example and the included license notices.

Before you buy

  • Aseprite 1.3, installed and licensed separately. Checked with Aseprite 1.3.18.6-dev on Linux; other versions and Windows or macOS are not checked yet.
  • A document saved to disk, with at least one rectangular slice inside the canvas. Animated slice bounds are not detected.
  • RGB or Indexed colour mode. Grayscale is not supported.
  • The purchased svarn-0.1.1-guide-bundle.zip package. It contains program/svarn-preview-20260929.zip, the exporter, installation instructions and practice files.

Extract the inner preview ZIP. In Aseprite 1.3 open Edit > Preferences > Extensions > Add Extension and select app/svarn-0.1.0.aseprite-extension; restart. Open a saved RGB or Indexed document with static rectangular slices, then use File > Svarn: Batch Export Slices.

Compatibility & limits

Aseprite licensed separately. Linux 1.3.18.6-dev GUI verified; Windows, macOS, large projects and upgrades unverified. No grayscale or animated slice bounds.

See how it works

Read the illustrated guide and inspect the sample files free of charge. The complete program is supplied in the purchased download. Previously obtained copies retain their included license rights.

View the illustrated example

Need to check a handoff or compare two exports?

Svarn Audit Pack is a separate $2.99 tool for checking saved export folders. It checks the manifest, PNG structure and file hashes, then reports added, removed or byte-changed PNGs between versions. It runs from a terminal with Python 3.10+. It does not compare artwork visually and is not required to export with Svarn.

See Svarn Audit Pack · $2.99 once

Get Svarn

Perpetual use of the purchased version on your devices for personal or internal commercial work. Keep reasonable backups and modify your own copy; do not redistribute or resell original proprietary code. Third-party licenses and any existing preview permissions retain their rights.

Before payment, save the private recovery code shown by checkout. After Paddle confirms payment, use it to download your ZIP or return for it later. No subscription, future update or email delivery is promised. See the illustrated steps.

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