TESIGN
SAVED

EN · KO

  1. TESIGN / RADAR
  2. 2026.09.21
  3. miu

miu

Open very large text files fast

WHO USES ITPeople who open big logs and data files often, and Windows users after a lighter Notepad.

Install to use

A minimal text editor that opens very large files instantly and draws colour emoji.

INSTALL
START IN 5 MINUTES ↓
The miu editor: a text file open on a dark background with line numbers and the search bar visible.
The miu editor: a text file open on a dark background with line numbers and the search bar visible.

TESIGN TAKE

It spends its effort on opening fast and not freezing rather than on features — a difference you feel immediately if you read logs for a living.

Activity and discovery evidence
★ 253

253 stars · checked on GitHub · no 7-day star increase observed (GH Archive) (as of )

AT A GLANCE

LICENSE
MIT
USAGE
Use, change and redistribute, commercially too. Keep the notice.
LANGUAGE
C++
PLATFORM
windows
ACTIVITY
last commit within 24 h () · latest release v1.0.48 () · 49 releases
COMMUNITY
2 contributors · 11 open issues (incl. PRs) · made by: an individual
SOURCES
GitHub
OPEN SOURCE
YES
FIRST SEEN
CATEGORY
PRODUCTIVITY · DEV TOOLS

A summary, not legal advice.

WHY IT MATTERS

Past a few hundred megabytes, most editors stall on open. miu maps the file instead of loading it whole, so a large file opens straight away, and being written directly against C++ and Win32 keeps it light.

BUILD FROM THIS

  • Text and colour emoji are rendered with DirectWrite. It has regular-expression search and replace with case and whole-word options, multiple cursors, rectangular selection, unlimited undo, a dark mode and F1 help, and uses Google’s compact_enc_det to detect encodings. Built binaries are on GitHub Releases.

WHO IT'S FOR

People who open big logs and data files often, and Windows users after a lighter Notepad.

START IN 5 MINUTES

# Download the binary from GitHub Releases and run it — there is no install step.

CAVEATS

  • The documentation is Japanese-first. It is built primarily for Windows (the repository also lists macOS and iOS targets), and building it yourself means preparing the encoding-detection library first.

RECEIPT

FIRST SEEN
AT SOURCE
KEPT
CREATED → FIRST SEEN
289d
WHEN FIRST SEEN
151 ★
SOURCES
GitHub

The same facts in machine-readable form — View as Markdown · JSON

SIMILAR TOOLS

Up to five from PRODUCTIVITY by ★ total: edited entries first, then repository cards; this entry is highlighted. Drawn from the same stored snapshot as the rankings — a comparison, not a recommendation.

IMAGENAME★ TOTAL▲ 7dLICENSEPLATFORMLAST PUSH
Hermes Agent landing: blue background, the headline 'The agent that grows with you' and an engraving-style winged figure.
Hermes AgentSelf-improving personal agent★ 261k▲ +12MITpermissivelinux · macos · windows · android · cli
The miu editor: a text file open on a dark background with line numbers and the search bar visible.
miuOpen very large text files fastTHIS ENTRY★ 253—MITpermissivewindows
immich-app/immichCARD★ 114k—AGPL-3.0copyleft—
stirling-tools/stirling-pdfCARD★ 91.9k—Licence unconfirmedunconfirmed—
sherlock-project/sherlockCARD★ 91.4k—MITpermissive—

ALSO WORTH SEEING

RC DesktopGUI for WSL containers on WindowsThe RC Desktop dashboard: 6 of 7 containers running, 7 images, 6 volumes and the WSLC session status.Install to use
★ 5▲ 4 HN
A small Windows app that manages WSL Containers (wslc) like Docker Desktop, in Rust.GitOrangeTeam git host on CloudflareA GitOrange pull request page: 'Add division to the Mill', all checks passed and a Merge button.Self-host
★ 33▲ 2 HN
A self-hosted, GitHub-style git host for your team that deploys as a single Cloudflare Worker, with no servers to run.MyGoBuild desktop apps in GoThe MyGo home page: 'Desktop apps in Go. Tiny, fast, fully typed.' with the start command.For developers
★ 4.6k
Build desktop apps in Go with a web frontend or a native UI; each app ships as one binary of a few megabytes.CoucouNotch companion for AI coding agentsThe Coucou notch view: a 'korus / Claude Code' session with Read, Edit, Bash and Done steps, and a diff of invoice.ts on the right.Install to use
★ 7k
A tiny friend that lives in your Mac's notch (or atop your screen) and watches your AI coding agent sessions.

TIMELINE

  1. Repository created
  2. FIRST SEEN BY TESIGN
  3. Published on TESIGN

SAME DAY

  1. 01

    Ruffle

    Play old Flash files again

    A Flash Player emulator that runs old SWF games and animations in today’s browser.

    Use in the browser
    ★ 18.8k
  2. 02

    SuperSplat

    Edit 3D Gaussian splats in a browser

    A browser editor for inspecting, cleaning up and publishing 3D Gaussian Splats.

    Use in the browser
    ★ 10.6k
  3. 03

    Acode

    Write and run code on an Android phone

    A code editor for Android with a built-in Linux terminal and instant preview.

    Install to use
    ★ 7.7k
  4. 04

    Monica

    Keep passwords on your own device

    A local-first password vault for Android that also holds your 2FA codes.

    Install to use
    ★ 1.2k
  5. 06

    Blurt

    Dictate into any Mac app

    Hold a key, talk, and polished text lands wherever you are typing on your Mac.

    Install to use
    ★ 68▲ 1 HN
  6. 07

    Inspo

    Give a coding agent design references

    A library of real production websites your coding agent can study before it writes UI.

    Install to use
    ★ 970
  7. 08

    Promptfoo

    Test what your AI app actually answers

    Test and compare what your prompts, agents and RAG apps actually answer.

    Install to use
    ★ 26.9k
  8. 09

    Nuclei

    Scan your servers for known weak spots

    A fast vulnerability scanner driven by simple, readable YAML templates.

    Install to use
    ★ 32.6k
  9. 10

    OpenSchool

    Run a school’s records in one system

    An open school platform: records, attendance, timetables, marks and reports in one place.

    Self-host
    ★ 40