Native Performance · Local-First · Eye-Care Palette

Keep up with the speed
of your thought.

Named after Homer’s "swift-footed Achilles", Akileas is engineered for uncompromising responsiveness and deep focus. Markdown syntax unfolds seamlessly at your cursor and settles into clean typography the moment you move on. No split-screen friction, no typing lag—just writing in pure flow.

Windows 10/11 macOS Linux

Design Philosophy

The Swift-Footed Achilles

In Homer’s Iliad, the hero Achilles is celebrated as "swift-footed" (πόδας ὠκὺς Ἀχιλλεύς)—embodying razor-sharp agility, unhindered momentum, and pure velocity. In an era where writing tools are weighed down by heavy web runtimes and sluggish electron wrappers, Akileas reclaims that effortless speed: immediate keystroke response, quiet simplicity, and a canvas that gets out of your way.

σευάμενος ὥς θ᾽ ἵππος ἀεθλοφόρος σὺν ὄχεσφιν,
ὅς ῥά τε ῥεῖα θέῃσι τιταινόμενος πεδίοιο·
ὣς Ἀχιλεὺς λαιψηρὰ πόδας καὶ γούνατ᾽ ἐνώμα.

“As a prize-winning steed with its chariot sweeps lightly over the plain in full career,
so Achilles swiftly plied his nimble feet and knees.”

— Homer, The Iliad, Book XXII (lines 22–24)

Continuous Interactive Canvas

What you write is what you read.

Markdown syntax reveals itself only on the active line under your cursor, instantly settling into refined typography as you navigate away. No dual-pane splits, no mental context switching—seamlessly bridge authoring and reading on a single surface.

Akileas on Windows running with workspace tree, math equations, tables, and Mermaid flowcharts
Unified native desktop workspace displaying live Markdown, math equations, Mermaid diagrams, workspace navigation, and Agent diagnostics.

Core Features

Engineered for Focus, Grounded in Precision

Light enough to disappear beneath your thoughts, capable enough for complex technical manuscripts.

I

In-Place Hybrid WYSIWYG

Eliminate fractured side-by-side preview panes. Raw Markdown syntax expands only on the active line under your cursor. Headings, lists, tables, links, and bold text render inline in real time, keeping your canvas immaculate.

II

GitHub Alert Callouts

Full support for standard GFM alert syntax: [!NOTE], [!TIP], [!IMPORTANT], [!WARNING], and [!CAUTION]. Syntax expands while editing and folds into softly accented, refined callout cards as your cursor moves past.

III

Smart Table Navigation & Alignment

Complete support for Markdown column alignment syntax (:--- left, :---: center, ---: right). Glide effortlessly across cells with Tab and Shift-Tab; pressing Tab in the final cell automatically appends a new row.

IV

Native Math & Diagram Rendering

First-class support for TeX/LaTeX formulas, Mermaid flowcharts and sequence diagrams, syntax-highlighted code fences, and task lists. Rendered natively by the GPU with zero browser runtimes or heavy script engines.

V

Built-in Time Machine & Auto-Recovery

Every save automatically captures up to 100 lightweight snapshots, complete with offline diff inspection and one-click rollback. Backed by a bounded binary recovery log, unsaved work survives unexpected crashes and power outages.

VI

Instant Text Analytics

Hardware-accelerated scanning segments ASCII text, CJK double-width characters, and punctuation accurately in sub-millisecond time. Word, character, and line metrics update like clockwork with every keystroke.

VII

Eye-Care Themes & Local-First Privacy

Switch seamlessly between soothing Eye-Care Parchment and deep Midnight Dark. 100% of your documents remain on your local drive. No accounts, no cloud sync lock-in, no telemetry.

VIII

Agent Configuration Workbench

Native parsing and validation for SKILL.md, AGENTS.md, and assistant configurations. Inline diagnostics highlight missing frontmatter keys or formatting errors with one-click automated fixes.

Technical Precision

Thoughtful Details for Serious Writing

From subtle typographic accents to multi-thousand-word engineering documentation, every interaction is carefully honed.

Interactive Tasks & Collapsible Details

Native support for - [ ] and - [x] task lists with direct mouse-click toggling; native <details> and <summary> support lets you expand and collapse long technical asides with ease.

Interactive Tasks Collapsible Details

Extended Markdown Typography

Comprehensive typographic coverage: highlight ==highlight==, strikethrough ~~strikethrough~~, underline <u>, keycaps <kbd>Ctrl</kbd>, superscript ^sup^, subscript ~sub~, and academic footnotes [^1].

Highlights Keycap Chips Footnotes

Async Image Decoding & GPU Cache

Supports relative local paths and remote network URLs with explicit width attributes (e.g., <img width="400">). Dedicated worker threads decode images into GPU textures, ensuring stutter-free scrolling even in image-dense manuscripts.

GPU Texture Cache Async Decoding Explicit Dimensions

Instant Batch Search & Replace

A hardware-accelerated matching core scans millions of lines without ever locking the interface. Use Ctrl+F for rapid find, Ctrl+H for batch replacements, and Ctrl+G to jump straight to a line.

Hardware Accelerated Batch Replace Go to Line

Instant Session Resume & Typography

Saves exact cursor coordinates, scroll lines, and sub-pixel offsets upon exit, restoring your exact writing context on launch. Seamlessly switch between system sans, serif, or monospace with dynamic scaling from 10pt to 32pt.

Session Memory Font Switching Dynamic Scaling

Workspace Tree & Syntax Diff

Work across multiple documents or entire project folders. The sidebar workspace tree automatically scans Markdown files, while native ```diff``` code fences provide clear red/green side-by-side comparisons.

Workspace Tree Multi-Tab View Syntax Diff

Latency-First Architecture

The UI Thread Never Waits.

Latency is treated as an uncompromising invariant. Each keystroke is applied as a single lightweight edit and immediately repaints a provisional view of the affected line; full re-parsing, layout calculation, and persistence then converge asynchronously in the background.

Fast Track · What You Feel (under 1 ms) Type to render: never blocked, never waiting, no redundant work
I Keystroke A single, self-contained edit
→
II Version Stamped Each edit carries a newer version number
→
III Line Repainted Only the touched line is redrawn
→
IV On Screen Character and cursor visible within a fraction of a frame
Convergence Track · What Happens Behind You Highlighting and typesetting catch up without ever interrupting you
I Only What Changed Just the affected lines are re-read
→
II Reusing the Rest Everything untouched is kept as-is
→
III Fresh Rendering State A complete, up-to-date picture of the document
→
IV Swapped In Outdated results are discarded, never shown

Three Independent Pipelines

Formulas, diagrams, and tables compute independently. LaTeX formulas wait until you pause typing; Mermaid diagrams are rendered only where you can see them; tables measure their own columns. Editing prose never triggers a costly diagram recalculation.

Formula Snapshots Mermaid Viewport Cache Adaptive Tables

Text and Graphics Kept Apart

The work is split so neither side waits on the other. Text editing, cursor hit-testing, incremental re-parsing, and statistics happen on the processor; glyph rendering, layer compositing, and vector drawing happen on the graphics card.

Text Engine Glyph Shaping Cache GPU Hardware Acceleration

Resilient Crash Recovery

Protecting your thoughts against sudden power loss. A built-in time machine retains up to 100 historical snapshots with offline diffing, paired with a lightweight recovery journal that restores unsaved work immediately upon restart.

100-Snapshot History Binary Recovery Log Atomic Swap

Want to explore the internal engineering design and benchmark methodology?

Read the technical manual

Private by Default

No Accounts. No Ads. Zero Telemetry.

Akileas processes all your documents strictly on your local machine. Network activity occurs only when you explicitly open external links or load remote assets.

Read full Privacy Policy
Akileas logo

Start Writing

Swift by Nature. Built for Pure Focus.

Available now on the Microsoft Store.