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EpubTidyEPUB Editor & Repair
EPUB Editor, Repair Toolkit & Offline Reader

Fix, Organize & Enjoy Every EPUB. Right on Your iPhone or iPad.

Edit metadata, replace covers, clean broken formatting, and export a corrected EPUB without opening a laptop. Then read it comfortably or listen with downloadable on-device voices—all from one private, local-first app.

Edit & Repair on iPhone & iPad
Metadata, Covers & CSS
Read & Listen Offline
Young woman listening to EPUB audiobook on iPhone with AirPods Pro in a sunlit modern living room
On-Device AI
Chapter 4: The Great ForestOFFLINE AI

Kokoro Voice • 1.0x • 14m left

⏸
Zero Signal Required

Read Hands-Free in the Great Outdoors

Cloud-reliant apps stop working the second you lose cellular service. EpubTidy was engineered from day one for true off-grid freedom.

⛺

Camping Deep in the Forest

Tucked into your sleeping bag under the stars with zero bars of signal. Enjoy soothing, deeply expressive storytelling for hours without worrying about cellular dead zones or expensive satellite data.

✓Minimal battery consumption
🎣

Fishing by the Lake or River

Hands occupied with your rod, tackle, or kayak paddles? Put in your AirPods and let EpubTidy read your favorite books. Pause and resume with a single tap on your earbud or via Siri.

✓100% hands-free listening
✈️

Flights & Mountain Passes

At 35,000 feet in airplane mode or cruising through remote highways. No annoying “buffering” circles or cloud sync failures. Your full library plays continuously with zero latency.

✓Zero audio buffering
The Smarter Choice

Why EpubTidy is Better Than Speechify for Ebooks

Speechify charges steep recurring fees and streams audio through remote cloud servers. Here is how EpubTidy gives book readers superior freedom:

↔ Swipe horizontally to compare full features

Feature / Capability
EpubTidy (On-Device AI)
Speechify & Cloud Readers
Offline Operation in the Wilderness✓ 100% Offline (Zero Signal)✗ Requires Active Internet
Subscription Cost✓ Free / No Recurring Fees✗ $139+/year subscription
Privacy & Data Security✓ 100% Private (On Device)✗ Book text uploaded to cloud
EPUB Code, Dublin Core & Cover Repair✓ Built-In Deep EPUB Editor✗ No EPUB editing tools
W3C Readium 2 Typography Engine✓ Full Visual Reader & TOCBasic document viewer
Battery & Cellular Data Usage✓ Apple Neural Engine Optimized✗ Heavy data & battery drain
Emotional AI Narration

Not Just Text-To-Speech. Real Human Storytelling.

Standard robotic voices get grating after 5 minutes. EpubTidy leverages state-of-the-art neural speech models (such as Kokoro-82M and Supertonic-3) executing natively on the Apple Neural Engine.

🎭

Expressive Dialogue & Pacing

Understands sentence structure, dramatic pauses, commas, question inflections, and chapter boundaries naturally.

⚡

Instant Offline Generation

Synthesizes audio in milliseconds with zero lag. No waiting for remote servers to stream audio bytes.

🏝️

Live Activities & Dynamic Island

Control playback seamlessly from your Lock Screen or Dynamic Island with chapter progress and reading habit countdowns.

Young woman deeply immersed listening to an expressive neural AI audiobook with AirPods Pro in golden afternoon light
🎧 Kokoro AI Voice
Two-in-One Powerhouse

Repair First, Then Read in Pure Luxury

Other readers choke on broken CSS, locked font sizes, and missing covers. EpubTidy heals your file so both your eyes and your ears have a flawless journey.

Interactive EPUB Tidy Inspector

Toggle between an unoptimized raw EPUB and its tidied result

Tideline high-resolution cover embedded in the tidied EPUB
Health Score: 98/100

Tideline

Author: Nora Finch

Series: Coastlines (#1)
Diagnostic Audit Report
✓High-resolution cover artwork embedded
✓All Dublin Core & Calibre series metadata synchronized
✓143 inline hardcoded font styles unlocked
✓Zero malformed HTML entities or OCR ligature artifacts
content.opf & chapter-01.xhtmlCleaned & Validated W3C EPUB
<package xmlns="http://www.idpf.org/2007/opf" version="3.0">
  <metadata xmlns:dc="http://purl.org/dc/elements/1.1/">
    <dc:title>Tideline</dc:title>
    <dc:creator id="creator">Nora Finch</dc:creator>
    <dc:language>en</dc:language>
    <meta property="belongs-to-collection">Coastlines</meta>
    <meta property="group-position">1</meta>
    <meta name="cover" content="cover-image"/>
  </metadata>
  <!-- Typography fully reflowable: no locked fonts -->
  <item id="chapter1" href="text/ch01.xhtml" media-type="application/xhtml+xml"/>
</package>
Result: Zero file bloat, 100% reader controlStatus: PRISTINE
Tidied library preview

Clean covers make the whole shelf easier to scan.

Replace missing artwork, correct title and author metadata, then export each improved EPUB.

Night Garden cover by Elian Rowe
Night Garden

Elian Rowe

Orbital cover by June Mercer
Orbital

June Mercer

Paper Moon cover by S. L. Arden
Paper Moon

S. L. Arden

The Quiet Atlas cover by Mara Vale
The Quiet Atlas

Mara Vale

Man relaxing by a campfire on an alpine lake shore listening hands-free to an EPUB eBook with AirPods Pro
🏕️ 100% Offline AI
The Complete Reading Companion

Read Anywhere on Earth. Repair, Polish & Listen Off-Grid.

Downloaded an eBook with broken formatting, missing covers, or locked 10px font sizes? EpubTidy heals your files with one tap. Heading outdoors where cell towers don’t reach? Your entire library and human-like neural narrator run natively on your iPhone or iPad with zero internet.

✓

Apple Books & Calibre Full Sync

Syncs series indices, Dublin Core tags, and high-resolution covers so your library shelf looks museum-grade.

✓

Non-Destructive Safety Gate

Validates character counts and keeps automated backup copies before writing changes directly into the EPUB zip container.

Engineered For Modern Devices

Designed with Apple Human Interface Excellence

Direct iOS Files app integration, gesture controls, batch importing, and responsive Readium 2 layout.

Library Health Scanner
Audit01/04

Library Health Scanner

Instant audit of covers, authors, and duplicates

Dublin Core Editor
Edit02/04

Dublin Core Editor

Live editing of titles, series, and tags

Smart Cover Matcher
Artwork03/04

Smart Cover Matcher

Apple Books high-res artwork search & replace

Readium 2 Reader
Read04/04

Readium 2 Reader

Distraction-free typography with Neural TTS

1 / 4
Core Capabilities

Everything You Need in One Unified App

From single-book quick fixes to full library quality diagnostics and neural read aloud.

Deep Metadata

Dublin Core & Calibre Series

Modify title, author, description, tags, ISBN, and series numbering. Overwrites directly into OCF EPUB zip without corrupting book structure.

Smart Cover Match

High-Res Artwork Finder

Replace low-res or missing covers with high-definition artwork directly from Apple Books or your Photos library in one single tap.

Library Health Scanner

Automated Book Doctor

Instantly audits your whole library for missing covers, empty authors, duplicate ISBNs, and filenames masquerading as titles.

Formatting Cleaner

Unlock Typography

Strips stubborn hardcoded CSS fonts, malformed &amp;nbsp; spaces, and OCR ligature artifacts so your book looks native in Apple Books and Kindle.

On-Device Neural AI

Read Aloud with Neural Voices

Listen to your books hands-free with on-device natural speech models. Fully offline, zero battery-draining cloud audio streaming.

100% Private

Local-First Architecture

No accounts, no third-party analytics SDKs, and zero telemetry. Your books, metadata, and reading progress never leave your device.

Got Questions?

Frequently Asked Questions About EpubTidy

Learn why readers choose EpubTidy over Speechify and traditional e-readers.

Can I listen to books offline with zero Wi-Fi or cellular service?▼

Yes! That is one of EpubTidy’s greatest strengths. Unlike cloud-based TTS readers that stop working the second you lose cell coverage, EpubTidy runs its Neural Speech AI (including models like Kokoro-82M) directly on your device’s Apple Neural Engine. It functions 100% offline, whether you are camping deep in the woods, fishing off-grid, on an airplane flight, or commuting underground.

Why is EpubTidy a better alternative to Speechify for EPUB books?▼

Speechify requires an expensive subscription ($139+ per year) and constantly streams audio from cloud servers, which rapidly drains your battery, consumes gigabytes of cellular data, and uploads your private reading material to their servers. In contrast, EpubTidy is completely private, local-first, requires zero subscriptions, works with zero internet, and includes comprehensive EPUB editing, cover enhancement, and formatting repair tools that Speechify does not offer.

How expressive and natural are the AI voices?▼

EpubTidy does not use the robotic, flat text-to-speech voices common in older apps. Our integrated neural voice models are trained on rich human speech patterns, incorporating natural breath pauses, dialogue rhythm, emotional inflection, and punctuation nuances for an immersive listening experience you can enjoy for hours without fatigue.

Is EpubTidy also a full visual e-reader?▼

Yes. While listed as an editor and repair utility, EpubTidy embeds a complete W3C-compliant Readium 2 rendering engine. You can read visually with customizable typography, four curated reading themes (Paper, Warm Light, Sepia, and OLED Night), font scaling, line height, dyslexia-friendly fonts, and multi-level Table of Contents navigation.

Does EpubTidy support Calibre series numbering and metadata?▼

Yes. EpubTidy fully supports Dublin Core metadata (dc:title, dc:creator, dc:description, dc:date, dc:identifier) as well as Calibre series conventions (calibre:series, calibre:series_index) and EPUB 3 collections. When exported, your books maintain perfect series order in Apple Books and e-readers.

Are my book files and reading history kept private?▼

100% private. We operate zero cloud servers that store your book library. All parsing, AI voice synthesis, and editing happen locally inside your iOS sandbox. We do not include third-party tracking or advertising SDKs.

Ready for the Ultimate Ebook Experience?

Start Reading & Listening Offline Today.

Available now on the App Store for iPhone and iPad. 100% on-device AI voice synthesis, zero subscription traps, and total freedom off the grid.