API Konversi Ebook ke EPUB - Pembuatan EPUB 3.0 Profesional

Buat ebook EPUB 3.0 yang valid dari konten terstruktur dengan halaman sampul, daftar isi, dukungan multibahasa, dan 7 template. Format input yang sama dengan API PDF — pembuatan instan.

Apa yang bisa Anda lakukan?
Output EPUB 3.0 Valid

Buat ebook EPUB yang dapat mengalir ulang dengan metadata OPF yang benar, daftar isi NCX, bab XHTML, dan gambar sampul tertanam. Kompatibel dengan semua pembaca ebook utama.

7 Template Profesional

Pilih dari Novel Modern, Novel Elegan, Makalah Akademis, Laporan Bisnis, Buku Masak, Panduan Perjalanan, atau Manual Teknis — masing-masing dengan gaya unik.

21+ Bahasa

Judul daftar isi, nomor bab, dan teks hak cipta diterjemahkan otomatis. Dari Inggris ke Bulgaria, Jerman, Jepang, Arab, dan lainnya.

99.9 % Waktu Aktif
Respons
20 req/s
2 Kredit / permintaan

Convert to EPUB

POST https://api.yeb.to/v1/ebooks/epub/convert-from-file
Parameter Tipe Wajib Deskripsi
api_key string Yes Your API authentication key (send in Authorization header or as parameter)
file_url string Yes Public URL to JSON file containing book data (metadata, chapters, options)
Same input as PDF API. Use the exact same JSON structure as the Ebooks to PDF API. Simply change the endpoint URL to get EPUB output instead of PDF.

JSON File Structure

Your JSON file at file_url should contain:

Parameter Tipe Wajib Deskripsi
template string Yes Template name: modern-novel, elegant-novel, academic-paper, business-report, cookbook, travel-guide, technical-manual
metadata object Yes Book metadata (title, author, etc.)
metadata.title string Yes Book title
metadata.author string Yes Author name
metadata.language string Optional Language code (e.g., en, bg, de). Affects TOC heading, chapter numbering, copyright text. Default: en. Supports 21+ languages.
metadata.description string Optional Book description (embedded in EPUB metadata)
metadata.year integer Optional Publication year (default: current year)
metadata.publisher string Optional Publisher name
metadata.isbn string Optional ISBN number (added as dc:identifier in OPF)
metadata.subtitle string Optional Book subtitle (shown on title page)
metadata.series string Optional Book series name (shown on title page)
metadata.cover_image string Optional Cover image URL (downloaded and embedded in EPUB)
chapters array Yes Array of chapter objects (max: 100)
chapters[].title string Yes Chapter title
chapters[].subtitle string Optional Chapter subtitle
chapters[].content string Yes Chapter content (plain text or HTML). Paragraphs separated by \n\n are auto-wrapped in <p> tags.
options object Optional Customization options
options.include_cover boolean Optional Include cover page if cover_image provided (default: true)
options.include_copyright boolean Optional Include copyright page (default: true)
options.font_size string Optional Base font size, e.g., 12pt (default: 12pt)
options.line_height string Optional Line height, e.g., 1.6 (default: 1.6)
texts object Optional Override auto-translated texts (copyright_text, publisher_text, chapter_number_format, toc_title, etc.)

JSON File Example

1. Create book.json on your server:
{
  "template": "elegant-novel",
  "metadata": {
    "title": "The Great Gatsby",
    "author": "F. Scott Fitzgerald",
    "subtitle": "A Novel of the Jazz Age",
    "description": "A story of decadence and excess...",
    "year": 1925,
    "publisher": "Charles Scribner's Sons",
    "isbn": "978-0-7432-7356-5",
    "language": "en",
    "cover_image": "https://example.com/gatsby-cover.jpg"
  },
  "chapters": [
    {
      "title": "Chapter I",
      "content": "In my younger and more vulnerable years...\n\nAnd, after boasting this way..."
    },
    {
      "title": "Chapter II",
      "content": "About half way between West Egg and New York..."
    }
  ],
  "options": {
    "font_size": "12pt",
    "line_height": "1.6",
    "include_copyright": true
  }
}
2. Upload to your server (e.g., https://yourdomain.com/books/book.json)
3. Call the API:

Integration Examples

curl -X POST https://api.yeb.to/v1/ebooks/epub/convert-from-file \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"file_url": "https://yourdomain.com/books/book.json"}'
const response = await fetch('https://api.yeb.to/v1/ebooks/epub/convert-from-file', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    file_url: 'https://yourdomain.com/books/book.json'
  })
});
const result = await response.json();
console.log(result.epub_url);
$response = Http::withHeaders([
    'Authorization' => 'Bearer YOUR_API_KEY'
])->post('https://api.yeb.to/v1/ebooks/epub/convert-from-file', [
    'file_url' => 'https://yourdomain.com/books/book.json'
]);
$epub_url = $response->json()['epub_url'];
import requests

headers = {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
}
payload = {
    "file_url": "https://yourdomain.com/books/book.json"
}
r = requests.post('https://api.yeb.to/v1/ebooks/epub/convert-from-file', json=payload, headers=headers)
print(r.json()['epub_url'])

Response Examples

{
  "success": true,
  "epub_url": "https://yeb.to/storage/ebooks/epub/epub_abc123.epub",
  "epub_size": 5772,
  "template": "elegant-novel",
  "chapters": 3,
  "generated_at": "2026-02-18T14:30:00+02:00",
  "response_code": 200,
  "response_time_ms": 12
}
{
  "error": "Metadata field 'title' is required",
  "response_code": 400,
  "response_time_ms": 5
}

Kode Respons

KodeDeskripsi
200 SuccessPermintaan diproses OK.
400 Bad RequestValidasi input gagal.
401 UnauthorizedKunci API hilang / salah.
403 ForbiddenKunci tidak aktif atau tidak diizinkan.
429 Rate LimitTerlalu banyak permintaan.
500 Server ErrorKegagalan tak terduga.
EPUB 3.0 Standard

Generated EPUBs are fully compliant with the EPUB 3.0 specification:

  • Valid OPF package document with dc:metadata
  • NCX table of contents (EPUB 2 compat)
  • EPUB 3 navigation document (nav.xhtml)
  • XHTML chapters with template-based CSS
  • Embedded cover image (JPG, PNG, WebP)
  • Title page, copyright page, TOC
  • 21+ languages auto-translated
Same Input as PDF

Use the exact same JSON data for both PDF and EPUB generation. Simply switch the endpoint URL to get your preferred output format.

Convert to EPUB

ebooks/epub/convert-from-file 2.0000 credits

Parameters

API Key
body · string · required
File URL
body · string · required

Code Samples


                
                
                
            

Response

Status:
Headers

                
Body

                

List Templates

POST https://api.yeb.to/v1/ebooks/epub/templates
Parameter Tipe Wajib Deskripsi
api_key string Yes Your API authentication key
Free endpoint! This endpoint costs 0 credits. Use it to discover available templates before generating.

Available Templates

Modern Novel

Clean, contemporary design. Drop-cap first letters, elegant typography.

modern-novel
Fiction, novels, short stories
Elegant Novel

Classic serif design with italic chapter titles and borders.

elegant-novel
Fiction, novels, multilingual
Academic Paper

Professional layout with bold headings and clear structure.

academic-paper
Research, academic, thesis
Business Report

Sans-serif corporate design with accent borders.

business-report
Business, reports, proposals
Cookbook

Recipe-friendly layout with warm colors.

cookbook
Recipes, cooking, food
Travel Guide

Compact sans-serif design with green accents.

travel-guide
Travel, guides, tourism
Technical Manual

Structured layout with shaded headers and monospace numbers.

technical-manual
Documentation, technical, manuals

Response Example

{
  "success": true,
  "templates": [
    {
      "slug": "modern-novel",
      "name": "Modern Novel",
      "description": "Clean, contemporary design...",
      "best_for": ["fiction", "novels", "short-stories"]
    },
    {
      "slug": "elegant-novel",
      "name": "Elegant Novel",
      "description": "Fully customizable elegant design...",
      "best_for": ["fiction", "novels", "multilingual"]
    }
  ],
  "total": 7,
  "response_code": 200,
  "response_time_ms": 8
}

Kode Respons

KodeDeskripsi
200 SuccessPermintaan diproses OK.
400 Bad RequestValidasi input gagal.
401 UnauthorizedKunci API hilang / salah.
403 ForbiddenKunci tidak aktif atau tidak diizinkan.
429 Rate LimitTerlalu banyak permintaan.
500 Server ErrorKegagalan tak terduga.

List Templates

ebooks/epub/templates 0.0000 credits

Parameters

API Key
body · string · required

Code Samples


                
                
                
            

Response

Status:
Headers

                
Body

                

API Konversi Ebook ke EPUB - Pembuatan EPUB 3.0 Profesional — Practical Guide

A hands-on guide to generating EPUB 3.0 ebooks from structured content: metadata, chapters, and templates. Same input format as the PDF API — just switch the endpoint to get reflowable EPUB output.

#What this API does

Send structured book content (metadata + chapters) and receive a valid EPUB 3.0 file with automatic table of contents, cover page, copyright page, and template-based styling. The output is reflowable — readers can adjust font size and layout on any device. Supports 21+ languages with auto-translated section headings.

Same input as PDF API. If you already use the Ebooks to PDF API, you can use the exact same JSON — just change the endpoint URL to get EPUB output instead.

#Endpoint

#POST https://api.yeb.to/v1/ebooks/epub/convert-from-file

  • Best for: Converting novels, articles, manuals, or any multi-chapter content into EPUB ebooks.
  • How it works: Pure PHP generation via ZipArchive — no external tools needed. XHTML chapters, OPF metadata, NCX + nav.xhtml TOC.
  • Output format: Valid EPUB 3.0 with NCX fallback for EPUB 2 readers.
  • Processing time: ~5-50ms depending on chapter count and cover image download.

#Quick start

Step 1: Create a JSON file with your book data:

{
  "template": "elegant-novel",
  "metadata": {
    "title": "My Book",
    "author": "Jane Doe",
    "language": "en",
    "description": "A wonderful story.",
    "cover_image": "https://example.com/cover.jpg"
  },
  "chapters": [
    {
      "title": "Chapter 1",
      "subtitle": "The Beginning",
      "content": "It was a dark and stormy night...\n\nThe wind howled through the trees."
    },
    {
      "title": "Chapter 2",
      "content": "The next morning brought sunshine and hope."
    }
  ]
}

Step 2: Upload to your server and call the API:

curl -X POST https://api.yeb.to/v1/ebooks/epub/convert-from-file \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"file_url": "https://yourdomain.com/book.json"}'

Step 3: Download the EPUB from the returned URL:

{
  "success": true,
  "epub_url": "https://yeb.to/storage/ebooks/epub/epub_abc123.epub",
  "epub_size": 5772,
  "template": "elegant-novel",
  "chapters": 2
}

#Available templates

TemplateStyleBest for
modern-novelSerif, drop-cap first letters, contemporaryFiction, novels, short stories
elegant-novelPalatino serif, italic chapters, bordered headingsFiction, novels, multilingual
academic-paperTimes, bold headings, left-aligned, cleanResearch, academic, thesis
business-reportSans-serif, blue accent borders, corporateReports, proposals, white papers
cookbookSerif, warm red accents, recipe-friendlyRecipes, cooking, food
travel-guideVerdana, green accents, compactTravel guides, tourism
technical-manualSans-serif, shaded headers, monospace numbersDocumentation, manuals

#Multilingual support

Set metadata.language to a 2-letter ISO code and the EPUB will automatically use translated text for section headings:

  • Table of Contents heading (e.g., "Съдържание" for Bulgarian)
  • Chapter numbering format (e.g., "Глава {n}" for Bulgarian)
  • Copyright text (e.g., "© {year} {author}. Всички права запазени.")

Supported: en, bg, de, fr, es, it, pt, ru, uk, pl, nl, tr, ja, zh, ko, ar, cs, ro, el, sr, hr.

#Generated EPUB structure

book.epub (ZIP archive)
├── mimetype                     # "application/epub+zip" (uncompressed)
├── META-INF/
│   └── container.xml            # Points to content.opf
└── OEBPS/
    ├── content.opf              # Package document (metadata + manifest + spine)
    ├── toc.ncx                  # NCX table of contents (EPUB 2 compat)
    ├── nav.xhtml                # EPUB 3 navigation document
    ├── style.css                # Template-based stylesheet
    ├── cover.xhtml              # Cover page (if cover_image provided)
    ├── titlepage.xhtml          # Title page
    ├── copyright.xhtml          # Copyright page
    ├── chapter_001.xhtml        # Chapter 1
    ├── chapter_002.xhtml        # Chapter 2
    ├── ...
    └── images/
        └── cover.jpg            # Embedded cover image

#When to use EPUB vs PDF

FeatureEPUBPDF
Reflowable text Yes Fixed layout
Reader font control Yes No
E-ink devices (Kindle) Ideal Usable
Print-ready No Yes
Fixed page numbers No Yes
Generation speed~5-50ms~2-5 seconds
File sizeSmall (5-50KB)Larger (500KB-5MB)

Pertanyaan yang Sering Diajukan

Kami menghasilkan file EPUB 3.0 dengan fallback NCX untuk pembaca EPUB 2. Output kompatibel dengan Apple Books, Calibre, Kobo, Google Play Books, dan semua pembaca ebook utama.

Ya! API EPUB menerima struktur JSON yang sama persis (metadata, bab, template, opsi) seperti API Ebook ke PDF. Cukup ubah URL endpoint untuk mendapatkan EPUB alih-alih PDF.

Tujuh template: Novel Modern, Novel Elegan, Makalah Akademis, Laporan Bisnis, Buku Masak, Panduan Perjalanan, dan Manual Teknis. Masing-masing menyediakan gaya CSS unik yang dioptimalkan untuk pembaca ebook.

Atur metadata.language ke salah satu dari 21+ kode ISO (en, bg, de, fr, es, it, pt, ru, uk, pl, nl, tr, ja, zh, ko, ar, cs, ro, el, sr, hr). Judul bagian, nomor bab, dan teks hak cipta diterjemahkan secara otomatis.

Ya. Atur metadata.cover_image ke URL publik (JPG, PNG, WebP). Gambar diunduh dan ditanamkan langsung ke file EPUB sebagai halaman sampul.

Setiap pembuatan EPUB membutuhkan 2 kredit. Endpoint template gratis (0 kredit). Kredit dapat dibeli dalam paket mulai dari $10.

Pembuatan EPUB sangat cepat — biasanya 5-50 ms untuk buku dengan hingga 100 bab. Tidak diperlukan alat atau kontainer eksternal; semuanya dibangun dalam PHP murni.

File EPUB yang dihasilkan disimpan selama 30 hari kemudian dihapus secara otomatis. Unduh file Anda segera atau simpan di CDN Anda sendiri.

Ya. Setiap permintaan, bahkan yang menghasilkan error, mengonsumsi kredit. Kredit Anda terkait dengan jumlah permintaan, terlepas dari keberhasilan atau kegagalan. Jika error jelas disebabkan oleh masalah platform di pihak kami, kami akan memulihkan kredit yang terpengaruh (tanpa pengembalian uang tunai).

Hubungi kami di [email protected]. Kami menganggap umpan balik serius—jika laporan bug atau permintaan fitur Anda bermakna, kami dapat memperbaiki atau meningkatkan API dengan cepat dan memberikan Anda 50 kredit gratis sebagai terima kasih.

Tergantung pada API dan terkadang bahkan pada endpoint. Beberapa endpoint menggunakan data dari sumber eksternal, yang mungkin memiliki batas lebih ketat. Kami juga menerapkan batas untuk mencegah penyalahgunaan dan menjaga stabilitas platform kami. Periksa dokumentasi untuk batas spesifik setiap endpoint.

Kami beroperasi dengan sistem kredit. Kredit adalah unit prabayar yang tidak dapat dikembalikan yang Anda gunakan untuk panggilan API dan alat. Kredit dikonsumsi secara FIFO (yang terlama lebih dulu) dan berlaku selama 12 bulan sejak tanggal pembelian. Dashboard menampilkan setiap tanggal pembelian dan masa berlakunya.

Ya. Semua kredit yang dibeli (termasuk saldo pecahan) berlaku selama 12 bulan sejak pembelian. Kredit yang tidak digunakan kedaluwarsa secara otomatis dan dihapus secara permanen di akhir masa berlaku. Kredit yang kedaluwarsa tidak dapat dipulihkan atau dikonversi menjadi uang tunai atau nilai lainnya. Aturan transisi: kredit yang dibeli sebelum 22 Sep 2025 diperlakukan sebagai dibeli pada 22 Sep 2025 dan kedaluwarsa pada 22 Sep 2026 (kecuali kedaluwarsa lebih awal dinyatakan saat pembelian).

Ya—dalam masa berlakunya. Kredit yang tidak digunakan tetap tersedia dan dialihkan dari bulan ke bulan hingga kedaluwarsa 12 bulan setelah pembelian.

Kredit tidak dapat dikembalikan. Beli hanya yang Anda butuhkan—Anda selalu bisa mengisi ulang nanti. Jika error platform menyebabkan tagihan gagal, kami dapat memulihkan kredit yang terpengaruh setelah penyelidikan. Tidak ada pengembalian uang tunai.

Harga ditetapkan dalam kredit, bukan dolar. Setiap endpoint memiliki biayanya sendiri—lihat lencana "Kredit / permintaan" di atas. Anda akan selalu tahu persis berapa yang Anda keluarkan.
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