Open Source Licenses

Last updated: September 20, 2026

Ambrose is built on open source software. This page lists the components we use and reproduces the copyright notices their licenses ask us to carry.

If you want a copy of any license text, or you have a question about something listed here, write to [email protected].

Delivered to your browser

These components run in your browser when you use Ambrose, so your copy of them arrives with the notices below.

Cytoscape.js

Copyright (c) 2016-2024, The Cytoscape Consortium.

MIT License

cytoscape-dagre

Copyright (c) 2016-2018, 2020, 2022, 2026, The Cytoscape Consortium.

MIT License

dagre

Copyright (c) 2012-2014 Chris Pettitt

MIT License

Alpine.js

Copyright (c) 2019-2025 Caleb Porzio and contributors

MIT License

Marked

Copyright (c) 2018+, MarkedJS (https://github.com/markedjs/)

Copyright (c) 2011-2018, Christopher Jeffrey (https://github.com/chjj/)

MIT License

Signature Pad

Copyright (c) 2018 Szymon Nowak

MIT License

Scalar API Reference

Copyright (c) 2023-present Scalar

MIT License. Used on our developer documentation site.

Fuse.js

Copyright (c) 2026 Kiro Risk

Apache License 2.0. Used on our developer documentation site.

The MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 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.

The Apache License 2.0 is available at apache.org/licenses/LICENSE-2.0.

Geolocation data

Ambrose records the approximate location of a signature when a document is signed, as part of the signing audit trail.

This product includes GeoLite2 data created by MaxMind, available from https://www.maxmind.com.

GeoLite2 data is used under the Creative Commons Attribution-ShareAlike 4.0 International License, available at creativecommons.org/licenses/by-sa/4.0/legalcode.

Server side components

The components below run on Ambrose servers and are not distributed to you. We list them for completeness.

Show all server side components

MIT

@acemir/cssom, @anthropic-ai/sdk, @asamuzakjp/css-color, @asamuzakjp/dom-selector, @asamuzakjp/nwsapi, @babel/code-frame, @babel/helper-validator-identifier, @babel/runtime, @csstools/css-calc, @csstools/css-color-parser, @csstools/css-parser-algorithms, @csstools/css-tokenizer, @esbuild/linux-x64, @exodus/bytes, @pdf-lib/standard-fonts, @pdf-lib/upng, @pkgjs/parseargs, @stablelib/base64, @tootallnate/quickjs-emscripten, @types/archiver, @types/body-parser, @types/connect, @types/cookie-parser, @types/cors, @types/express, @types/express-serve-static-core, @types/geoip-lite, @types/http-errors, @types/js-yaml, @types/mime, @types/multer, @types/node, @types/node-cron, @types/nodemailer, @types/pg, @types/qs, @types/range-parser, @types/readdir-glob, @types/sanitize-html, @types/send, @types/serve-static, @types/yauzl, abort-controller, accepts, agent-base, ansi-regex, ansi-styles, append-field, archiver, archiver-utils, array-flatten, ast-types, async, asynckit, axios, balanced-match, base64-js, basic-ftp, bidi-js, bignumber.js, body-parser, brace-expansion, buffer, buffer-crc32, buffer-from, busboy, bytes, call-bind-apply-helpers, call-bound, callsites, chalk, cheerio, color-convert, color-name, combined-stream, composer, compress-commons, concat-map, concat-stream, content-disposition, content-type, cookie, cookie-parser, cookie-signature, core-util-is, cors, cosmiconfig, crc32-stream, cross-spawn, css-tree, cssstyle, csv-parse, data-uri-to-buffer, data-urls, dayjs, debug, decimal.js, deepmerge, degenerator, delayed-stream, depd, destroy, dom-serializer, dunder-proto, eastasianwidth, ee-first, emoji-regex, encodeurl, encoding-sniffer, end-of-stream, env-paths, error-ex, es-define-property, es-errors, es-object-atoms, es-set-tostringtag, esbuild, escalade, escape-html, escape-string-regexp, etag, event-target-shim, events, express, express-rate-limit, extend, fast-fifo, fast-xml-parser, fastapi, fd-slicer, fetch-blob, finalhandler, follow-redirects, form-data, formdata-polyfill, forwarded, fresh, function-bind, get-intrinsic, get-proto, get-stream, get-tsconfig, get-uri, gopd, has-flag, has-symbols, has-tostringtag, hasown, helmet, html-encoding-sniffer, htmlparser2, http-errors, http-proxy-agent, https-proxy-agent, iconv-lite, import-fresh, ip-address, ipaddr.js, is-arrayish, is-fullwidth-code-point, is-plain-object, is-potential-custom-element-name, is-stream, isarray, jose, js-tokens, js-yaml, jsbn, jsdom, json-bigint, json-parse-even-better-errors, json-schema-to-ts, jwa, jws, launder, lazy, lazystream, lines-and-columns, lodash, math-intrinsics, media-typer, merge-descriptors, methods, mime, mime-db, mime-types, mitt, ms, multer, nanoid, negotiator, netmask, node-domexception, node-fetch, normalize-path, object-assign, object-inspect, on-finished, pac-proxy-agent, pac-resolver, parent-module, parse-json, parse-srcset, parse5, parse5-htmlparser2-tree-adapter, parse5-parser-stream, parseurl, path-is-absolute, path-key, path-to-regexp, pdf-lib, pend, pg, pg-cloudflare, pg-connection-string, pg-pool, pg-protocol, pg-types, pgpass, postcss, postgres-array, postgres-bytea, postgres-date, postgres-interval, process, process-nextick-args, progress, proxy-addr, proxy-agent, proxy-from-env, pump, punycode, pydantic, range-parser, raw-body, readable-stream, require-directory, require-from-string, resolve-from, resolve-pkg-maps, safe-buffer, safer-buffer, sanitize-html, send, serve-static, shebang-command, shebang-regex, side-channel, side-channel-list, side-channel-map, side-channel-weakmap, smart-buffer, socks, socks-proxy-agent, standardwebhooks, statuses, streamsearch, streamx, string-width, string_decoder, strip-ansi, stripe, strnum, supports-color, symbol-tree, tailwindcss, tar-fs, tar-stream, teex, tldts, tldts-core, toidentifier, tr46, ts-algebra, tsx, type-is, typed-query-selector, typedarray, undici, undici-types, unpipe, util-deprecate, utils-merge, uuid, vary, w3c-xmlserializer, web-streams-polyfill, whatwg-encoding, whatwg-mimetype, whatwg-url, wrap-ansi, ws, xmlchars, xtend, yargs, yauzl, zip-stream, zod

Apache-2.0

@puppeteer/browsers, accelerate, adler-32, b4a, bare-events, bare-fs, bare-os, bare-path, bare-stream, bare-url, cfb, chromium-bidi, codepage, crc-32, ecdsa-sig-formatter, events-universal, frac, gaxios, gcp-metadata, geoip-lite, google-auth-library, google-logging-utils, googleapis, googleapis-common, huggingface_hub, puppeteer, puppeteer-core, readdir-glob, sentencepiece, ssf, text-decoder, transformers, typescript, webdriver-bidi-protocol, wmf, word, xlsx, xml-name-validator

ISC

@isaacs/cliui, boolbase, cliui, foreground-child, fs.realpath, get-caller-file, glob, graceful-fs, inflight, inherits, isexe, lru-cache, minimatch, node-cron, once, pg-int8, picocolors, rimraf, saxes, semver, setprototypeof, signal-exit, split2, which, wrappy, y18n, yargs-parser

BSD-2-Clause

cheerio-select, css-select, css-what, domelementtype, domhandler, domutils, dotenv, entities, escodegen, esprima, estraverse, esutils, extract-zip, nth-check, webidl-conversions

BSD-3-Clause

buffer-equal-constant-time, devtools-protocol, diff, firebase/php-jwt, ieee754, qs, source-map, source-map-js, sprintf-js, torch, tough-cookie, uvicorn

BlueOak-1.0.0

jackspeak, minipass, package-json-from-dist, path-scurry

MIT-0

@csstools/color-helpers, @csstools/css-syntax-patches-for-csstree, nodemailer

(MIT AND Zlib)

pako

0BSD

tslib

BSD

url-template

CC0-1.0

mdn-data

GPL-2.0-or-later

poppler-utils

LGPL-2.1-only

phpmailer/phpmailer

LGPL-3.0

wkhtmltopdf

MIT-CMU

Pillow

Python-2.0

argparse

Unlicense

fast-sha256