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License

Markdown by Aiku is a closed-source service. All rights are reserved unless otherwise stated below. You may not reuse, distribute, or modify the application code without prior written consent from Aiku.

Application License

Copyright (c) 2024-2025 Aiku

All rights reserved. Redistribution or reuse of the Markdown by Aiku code,
design assets, or documentation in source or binary form is prohibited
without prior written permission from Aiku. Usage is limited to the hosted
service provided by Aiku and any other access explicitly authorized in
writing by Aiku.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED. IN NO EVENT SHALL AIKU BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Open Source Components

Markdown by Aiku uses the following open-source software:

Typst — Apache License 2.0

The PDF rendering engine is powered by Typst, compiled to WebAssembly.

View Typst License

pulldown-cmark — MIT License

Markdown parsing is handled by pulldown-cmark.

View pulldown-cmark License

Fonts

Fonts are loaded from Google Fonts CDN at runtime. The following fonts are used:

Lora, Inter, Roboto, Open Sans — SIL Open Font License 1.1

Body fonts available in the editor.

View SIL OFL License

JetBrains Mono, Fira Code — SIL Open Font License 1.1

Monospace fonts for code blocks.

View SIL OFL License

Noto Color Emoji — SIL Open Font License 1.1

Color emoji font for Unicode emoji rendering.

View Noto Emoji License

Libertinus Serif — SIL Open Font License 1.1

Default body font bundled with Typst.

View Libertinus License

Full License Texts

For convenience, the full texts of the applicable licenses are provided below.

SIL Open Font License 1.1

SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007

PREAMBLE
The goals of the Open Font License (OFL) are to stimulate worldwide
development of collaborative font projects, to support the font creation
efforts of academic and linguistic communities, and to provide a free and
open framework in which fonts may be shared and improved in partnership
with others.

The OFL allows the licensed fonts to be used, studied, modified and
redistributed freely as long as they are not sold by themselves. The
fonts, including any derivative works, can be bundled, embedded,
redistributed and/or sold with any software provided that any reserved
names are not used by derivative works. The fonts and derivatives,
however, cannot be released under any other type of license. The
requirement for fonts to remain under this license does not apply to any
document created using the fonts or their derivatives.

PERMISSION & CONDITIONS
Permission is hereby granted, free of charge, to any person obtaining a
copy of the Font Software, to use, study, copy, merge, embed, modify,
redistribute, and sell modified and unmodified copies of the Font
Software, subject to the following conditions:

1) Neither the Font Software nor any of its individual components, in
   Original or Modified Versions, may be sold by itself.
2) Original or Modified Versions of the Font Software may be bundled,
   redistributed and/or sold with any software, provided that each copy
   contains the above copyright notice and this license.
3) No Modified Version of the Font Software may use the Reserved Font
   Name(s) unless explicit written permission is granted by the
   corresponding Copyright Holder.
4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
   Software shall not be used to promote, endorse or advertise any
   Modified Version, except to acknowledge the contribution(s) of the
   Copyright Holder(s) and the Author(s) or with their explicit written
   permission.
5) The Font Software, modified or unmodified, in part or in whole, must
   be distributed entirely under this license and must not be distributed
   under any other license.

DISCLAIMER
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

Apache License 2.0 (Summary)

Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.