Open Source Licenses
KolayDönüştür was not built from scratch — it stands on the work of the open source community. Below is the complete list of the 1418 open source packages we use — name, version, license and copyright holder. Our thanks to every one of their authors.
📊 Most Common License Types
| Package | Version | License | Owner / Publisher | Source |
|---|---|---|---|---|
| @next/bundle-analyzer | 15.5.18 | MIT | — | GitHub |
| @next/env | 15.1.0 | MIT | Next.js Team | GitHub |
| @next/eslint-plugin-next | 15.1.0 | MIT | — | GitHub |
| @next/swc-win32-x64-msvc | 15.1.0 | MIT | — | GitHub |
| @nodable/entities | 2.1.0 | MIT | Amit Gupta | GitHub |
| @nodelib/fs.scandir | 2.1.5 | MIT | — | GitHub |
| @nodelib/fs.stat | 2.0.5 | MIT | — | GitHub |
| @nodelib/fs.walk | 1.2.8 | MIT | — | GitHub |
| @nolyfill/is-core-module | 1.0.39 | MIT | — | GitHub |
| @opentelemetry/api-logs | 0.207.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/api-logs | 0.208.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/api-logs | 0.212.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/api-logs | 0.214.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/api | 1.9.1 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/core | 2.2.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/core | 2.6.1 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/core | 2.7.1 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/exporter-logs-otlp-http | 0.208.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-amqplib | 0.61.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-connect | 0.57.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-dataloader | 0.31.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-fs | 0.33.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-generic-pool | 0.57.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-graphql | 0.62.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-hapi | 0.60.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-http | 0.214.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-kafkajs | 0.23.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-knex | 0.58.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-koa | 0.62.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-lru-memoizer | 0.58.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-mongodb | 0.67.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-mongoose | 0.60.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-mysql2 | 0.60.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-mysql | 0.60.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-pg | 0.66.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation-tedious | 0.33.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation | 0.207.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation | 0.212.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/instrumentation | 0.214.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/otlp-exporter-base | 0.208.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/otlp-transformer | 0.208.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/resources | 2.2.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/resources | 2.7.1 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/sdk-logs | 0.208.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/sdk-metrics | 2.2.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/sdk-trace-base | 2.2.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/sdk-trace-base | 2.7.1 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/semantic-conventions | 1.40.0 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @opentelemetry/sql-common | 0.41.2 | Apache-2.0 | OpenTelemetry Authors | GitHub |
| @oxc-project/types | 0.128.0 | MIT | Boshen and oxc contributors | GitHub |
| @panva/hkdf | 1.2.1 | MIT | Filip Skokan | GitHub |
| @parcel/watcher-win32-x64 | 2.5.6 | MIT | — | GitHub |
| @parcel/watcher | 2.5.6 | MIT | — | GitHub |
| @pdf-lib/fontkit | 1.1.1 | MIT | Andrew Dillon | GitHub |
| @pdf-lib/standard-fonts | 1.0.0 | MIT | Andrew Dillon | GitHub |
| @pdf-lib/upng | 1.0.1 | MIT | photopea | GitHub |
| @polka/url | 1.0.0-next.29 | MIT | Luke Edwards | GitHub |
| @posthog/core | 1.28.4 | MIT | — | GitHub |
| @posthog/types | 1.372.10 | MIT | — | GitHub |
| @prisma/client | 5.22.0 | Apache-2.0 | Tim Suchanek | GitHub |
| @prisma/debug | 5.22.0 | Apache-2.0 | Tim Suchanek | GitHub |
| @prisma/engines-version | 5.22.0-44.605197351a3c8bdd595af2d2a9bc3025bca48ea2 | Apache-2.0 | Tim Suchanek | GitHub |
| @prisma/engines | 5.22.0 | Apache-2.0 | Tim Suchanek | GitHub |
| @prisma/fetch-engine | 5.22.0 | Apache-2.0 | Tim Suchanek | GitHub |
| @prisma/get-platform | 5.22.0 | Apache-2.0 | Tim Suchanek | GitHub |
| @prisma/instrumentation | 7.6.0 | Apache-2.0 | — | GitHub |
| @protobufjs/aspromise | 1.1.2 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/base64 | 1.1.2 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/codegen | 2.0.5 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/eventemitter | 1.1.0 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/fetch | 1.1.0 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/float | 1.0.2 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/inquire | 1.1.1 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/path | 1.1.2 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/pool | 1.1.0 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @protobufjs/utf8 | 1.1.1 | BSD-3-Clause | Daniel Wirtz | GitHub |
| @radix-ui/number | 1.1.1 | MIT | — | GitHub |
| @radix-ui/primitive | 1.1.3 | MIT | — | GitHub |
| @radix-ui/react-arrow | 1.1.7 | MIT | — | GitHub |
| @radix-ui/react-avatar | 1.1.11 | MIT | — | GitHub |
| @radix-ui/react-collection | 1.1.7 | MIT | — | GitHub |
| @radix-ui/react-compose-refs | 1.1.2 | MIT | — | GitHub |
| @radix-ui/react-context | 1.1.2 | MIT | — | GitHub |
| @radix-ui/react-context | 1.1.3 | MIT | — | GitHub |
| @radix-ui/react-dialog | 1.1.15 | MIT | — | GitHub |
| @radix-ui/react-direction | 1.1.1 | MIT | — | GitHub |
| @radix-ui/react-dismissable-layer | 1.1.11 | MIT | — | GitHub |
| @radix-ui/react-dropdown-menu | 2.1.16 | MIT | — | GitHub |
| @radix-ui/react-focus-guards | 1.1.3 | MIT | — | GitHub |
| @radix-ui/react-focus-scope | 1.1.7 | MIT | — | GitHub |
| @radix-ui/react-id | 1.1.1 | MIT | — | GitHub |
| @radix-ui/react-menu | 2.1.16 | MIT | — | GitHub |
| @radix-ui/react-popper | 1.2.8 | MIT | — | GitHub |
| @radix-ui/react-portal | 1.1.9 | MIT | — | GitHub |
| @radix-ui/react-presence | 1.1.5 | MIT | — | GitHub |
| @radix-ui/react-primitive | 2.1.3 | MIT | — | GitHub |
| @radix-ui/react-primitive | 2.1.4 | MIT | — | GitHub |
| @radix-ui/react-progress | 1.1.8 | MIT | — | GitHub |
| @radix-ui/react-roving-focus | 1.1.11 | MIT | — | GitHub |
| @radix-ui/react-select | 2.2.6 | MIT | — | GitHub |
📎 Special Attributions
- Browser compatibility data: caniuse.com (CC BY 4.0) — thanks to Alexis Deveria and contributors.
- Noto Sans Font Family: Google Noto Fonts (SIL OFL 1.1) — Google and contributors.
- OCRmyPDF: OCRmyPDF (MPL-2.0) — Tesseract-based OCR engine.
- PDF processing stack (AGPL-free, 24 May 2026): pdf-lib (MIT), pdfjs-dist (Apache 2.0), sharp (Apache 2.0), @hyzyla/pdfium (MIT) — Google PDFium WebAssembly sarmalayıcısı (Apache 2.0), @napi-rs/canvas (MIT), tesseract.js (Apache 2.0), qpdf (Apache 2.0). Önceki AGPL bağımlılığı (Ghostscript) bu tarihte tamamen kaldırılmıştır.
- CBRT EVDS data: Central Bank of the Republic of Türkiye (public domain).
- Open-Meteo hava verisi: open-meteo.com (CC BY 4.0).
🧩 Engines delivered to your browser
Some tools process your file inside your browser using the open-source engines below, without uploading it. These engines are served unmodified, under their own licenses.
- FFmpeg (ffmpeg.wasm core, v0.12) — video/audio tools. GPL-2.0-or-later build (x264 and x265 GPL-2.0+, LAME and FriBidi LGPL, other components under their own licenses). Build configuration:
--enable-gpl --enable-libx264 --enable-libx265 --enable-libvpx --enable-libmp3lame. Source code: github.com/ffmpegwasm/ffmpeg.wasm and ffmpeg.org/download.html. To request a copy of the corresponding source code under the GPL: [email protected]. - Whisper (OpenAI, MIT) — speech-to-text; Xenova/whisper-base ONNX model (MIT) and Transformers.js (Apache-2.0).
- ISNet general-use / DIS (Apache-2.0) — background removal (ONNX model).
- ONNX Runtime Web (MIT) — runtime that executes the AI models in the browser.
- Tesseract OCR — tesseract.js and tesseract.js-core (Apache-2.0), language data tessdata_best (Apache-2.0).
🖥️ Tools running as separate programs on our servers
The open-source programs below run on our servers as separate processes, unmodified and not distributed.
- Poppler (pdftotext, pdftoppm — GPL-2.0/3.0) — PDF text and image extraction.
- Ghostscript (AGPL-3.0) — inside OCRmyPDF, only for producing OCR output.
- unpaper (GPL-2.0+) — scanned page cleanup.
- LibreOffice (MPL-2.0) — office document conversion.
- qpdf (Apache-2.0), Tesseract (Apache-2.0).
🛡️ Our License Policy
KolayDönüştür is a commercial, closed-source web service. Our own code’s npm dependencies do not include AGPL, SSPL or CC-BY-NC packages. Every PR automatically runs npm run license:check as a risk scan; if AGPL/SSPL/CC-BY-NC is detected the build fails. Our npm dependencies are under MIT, Apache 2.0, BSD, ISC or similarly commercial-friendly licenses. The separate programs and browser engines listed in the cards above (including FFmpeg) are subject to their own licenses; we use them unmodified, as programs separate from our code.