Private Windows preview
League Companion
Keep the draft, matchup and saved build plan clear beside League. The app reads local Riot interfaces, never controls the game, and encrypts account history locally for your current Windows account.
AccessInvited preview
PlatformWindows 10/11 x64
StartupRequired updates
Community signal
What do you think of the preview?
Choose either response or both. Each can be confirmed once for a shared public network.
You can choose both. Each response can be confirmed once per shared public network.
Thank you. Your response has been counted.That response was already confirmed from this shared network.Your response could not be recorded just now.CompleteConfirm the Hype response?Confirm the Read response?Free by design
No payment, advertising or tracking layer
The invitation controls who can test unfinished builds. It does not unlock a paid product.
Invitation codes are access control, not payment. They protect the private preview while it is being tested and do not create an account charge, renewal or subscription.
Invited preview
Download the Windows app
Use the code supplied with your invitation. A correct code creates one protected download that expires after five minutes.
1Enter code
2Download once
3Verify the file
Windows download protection
What to do if SmartScreen appears
Do not switch off SmartScreen. Check the download source and the complete SHA-256 value before deciding whether to open this invited preview.
Source: Microsoft SmartScreen reputation guidance
Current release status
Publisher may appear as Unknown
Unsigned invited preview
No Authenticode publisher signature is attached. Windows may show “Windows protected your PC” because this exact file and publisher do not have established reputation.
SmartScreen checks
File and publisher reputation
A warning means Windows does not have enough positive reputation for the downloaded file or its signer. It is not proof that the file is safe, and it is not by itself proof that the file is malicious.
The checksum checks
Exact release bytes
A matching SHA-256 confirms that your file is byte-for-byte the release recorded by VRC.LOL. It does not replace a publisher signature or malware protection.
A signature checks
Publisher identity
This preview does not yet include one. That is why the page labels it unsigned instead of presenting the checksum as publisher verification.
Before opening the file
Make three checks
- 1Use the protected VRC.LOL downloadDo not run a copy received through chat, email, a file mirror or another website.
- 2Check the filename and size
league_companion.exe· 33.5 MB - 3Compare every SHA-256 characterUse the PowerShell command below. Stop if even one character differs.
Security model in plain English
League and the Companion communicate locally
127.0.0.1 is your own computer. League exposes local HTTPS interfaces; the Companion reads them and turns the response into a clearer display on your Windows computer. It does not open your League client to the public internet.
League client
Lobby, champion select and client phase.
Local HTTPS
127.0.0.1VRC.LOL Companion
Reads, labels and displays the available response.
Windows only
DPAPIEncrypted history
Account-separated reviews and settings. Records can span game patches.
Stays local
Normal Companion operation
- League lockfile credential
- Local client and live-client responses
- Encrypted match history
- Window, display and accessibility settings
Uses the internet
Small, named connections
- Mandatory release manifest and verified update from VRC.LOL
- Public patch and champion assets from Riot Data Dragon
- Links you deliberately open in the browser
- Optional streamer-safe `/live` snapshot only when privately configured
Never sent by design
Credentials and control
- League lockfile password
- Riot password or session login
- Encrypted local history file
- Automated clicks, keys, purchases, movement, pings or chat
Official sources · Riot Support · Read Riot's full patch notes
Inside the Windows app
Draft, build and review without losing the match context
Each view answers one immediate question. Champion select shows who is where, the saved plan shows what was prepared before play, and history stays available after the client closes.
Champion select
Draft / RankedSee both teams by lane
Confirmed picks, hovers and bans remain distinct. Unusual player-selected lanes are labelled without pretending they are standard or impossible.
BotJinx
Support · YouBlitzcrank
BotCaitlyn
SupportMorganaFixed before play
Keep the purchase order visible
Queue-aware starting items and completed-item steps are saved from the draft. Live score, gold and opponent performance never reorder them.
StartWorld Atlas
1Locket
2Zeke's
3Knight's Vow
Illustrative build · Historical reference · Data Dragon 16.15.1
After the match
Keep a private match review
Eligible non-custom matches are separated by Riot account and encrypted for the current Windows user.
Support · Draft PickBlitzcrank5 / 3 / 18 · 32m
Win
Vision score (points)42Assists18Wards placed12
Raw points, not out of 10 or 100.
Vision score measures vision contribution. Wards placed counts how many wards you placed.
From startup to review
The screen changes when the League client changes
The Companion identifies the current client phase and keeps unrelated controls out of the way. Advice prepared before play remains fixed once the match begins.
- 1League closedReady screenReady
Open League, preview the demo draft, or check the protected release channel.
- 2Lobby and matchmakingQueue contextWaiting
Shows the detected queue and map while waiting for champion select.
- 3Champion selectDraft boardMost detail
Separates hovers, locked picks and confirmed bans, then labels lanes and unusual choices.
- 4In progressSaved plan and inventory factsRead only
Keeps the pre-game build visible. Owned markers can mirror visible inventory without changing the plan.
- 5Match completePrivate historyLocal
Stores an eligible non-custom review locally for the current Riot account and patch.
- 6SpectatingDelayed match viewDelayed
Marks spectator data and inferred roles clearly, and never records the match as your history.
Keyboard control
Reach the right view without hunting through the window
Every combination can be changed, reset or disabled. The defaults use physical key positions, so they remain dependable on non-English keyboard layouts.
One companion, four clear stages
Keep the useful part of League in view
The interface changes with the client state, then stops changing advice once play begins. You remain in control of every decision.
Read the draft
See assigned lanes, confirmed bans, unusual picks and the Bot-lane pair without guessing what “Bot” means.
Save one plan
Review the matchup, opening purchases, completed items and player-selected alternatives before the match starts.
Item count does not prove the build is complete. The Companion never chooses a replacement for you.
Keep it beside League
Use the optional compact overlay on another display or above a Borderless/Windowed client. It never controls League.
Review privately
Completed non-custom matches are saved locally for each Riot account until you clear them. Switching accounts switches this history.
Recover recent matches
Recover missed matches between games
Reads up to 20 completed matches from your local League client. Existing saved plans are preserved. No upload is enabled.
Match events
Local completed-game timeline: combat and team objectives. Ward and shop timestamps are unavailable from this source.
Post-match review → Team objective · Your team / Opponents
Riot timeline
Ward and shop times require recorded timeline events. Final totals cannot recreate those timestamps.
Team structure timeline
Recorded tower and inhibitor takedowns show their match time, lane and known tower tier. Team takedowns are separate from your personal actions; respawns can produce another event.
Recorded map positions
Recorded positions are retained for Rift, ARAM and League Classic when available.
Maps need recorded positions and verified artwork alignment.
Numbers may move to prevent overlap. Lines connect them to recorded positions.
Team scores require a complete Riot timeline matching both final kill totals.
Up to one encrypted snapshot per minute is retained, capped at 90 samples. Open Riot's replay for movement between samples.
Builds
Find a build by its title, item, purpose, lane or champion.
Post-match map preview
Home → Post-match map preview
Recorded event positions. Map artwork alignment is still under review.
- You · Your team · Opponents
- Champions · Kill · Death · Assist
- Epic objectives · Ward placed · Ward cleared
- All champions · Lux / Participants: Lux · Your team · #1
- Game time: 00:00–09:59 · 10:00–19:59 · 00:00–01:59 · 02:00–03:59
Owner-only Live map
Sign in with VRC.LOL. Private map access requires permission for your Companion feed.
Encrypted local record
Final totals recorded locally after the match.
Recorded role
Post-match review → Recorded role
Lane recorded in the completed timeline; your selected role may differ.
Full final statistics
Open a champion's statistics in either team to inspect the totals recorded for that player. Missing fields remain unavailable; recorded zeroes stay visible.
- Champion damage
- Total healing
- Ally shielding
- Vision score
- Wards placed
- Wards cleared
- Gold earned
Additional totals
- Detector wards
- Building damage
- Longest life
- Killing sprees
- Largest killing spree
- Final bounty level
- Personal Baron kills
- Personal dragon kills
- Consumables purchased
- Items purchased
Personal last-hit totals.
These panels are tested locally; native release verification is pending.
Recorded runes
- Primary runes
- Secondary runes
- Recorded choices
Captured categories only.
These panels are tested locally; native release verification is pending.
Ping counts
- All-in
- Assist me
- Danger
- Enemy missing
- Enemy vision
- Retreat
- Hold
- Need vision
- On my way
- Push
- Vision cleared
Captured categories only.
Counts do not include event timestamps.
These panels are tested locally; native release verification is pending.
Recent performance
Your saved matches, grouped by champion, role, exact queue and patch.
Rates average the matches with recorded inputs. Each metric shows its sample count. Win rate uses decided matches only.
Recent record, not season totals.
Before downloading
What the preview needs
The Companion is a native Windows application. It is not a browser extension and it does not need a Riot production API key on the tester's PC.
Windows 10 or 11
64-bit Windows is required. The release record names the exact supported platform.
League installed locally
Open the Riot and League clients normally. Detection updates as the local client changes state.
One monitor is enough
Choose any detected display. A second monitor is useful, while the compact overlay supports Borderless or Windowed play.
HTTPS release checks
Startup verifies the guarded release channel. Local client credentials and private match history are not uploaded.
File identity
Check before opening
The checksum must match every character. A different hash means it is not this recorded build.
- Filename
- league_companion.exe
- File size
- 33.5 MB35,175,936 bytes
- Publisher verification
- Unsigned preview No Windows publisher signature is attached Windows SmartScreen may warn. The SHA-256 below confirms that the file matches this VRC.LOL release record; it does not establish publisher identity.
- SHA-256
AC85895B963DFBC869BC206215B0AD8D0230CA8DD34DC88F709A1074AE19FECE
PowerShellRun beside the received file
Get-FileHash .\league_companion.exe -Algorithm SHA256What it does
Local, visible and deliberately limited
The preview follows a static plan prepared from champion select. It never plays League for you.
Local detection
Reads Riot's local client, Live Client, and delayed spectator interfaces through loopback addresses on your Windows computer. Local credentials are never uploaded.
Private match review
Keeps up to 20 recent non-custom matches across game patches in separate, Windows-encrypted histories for each Riot account.
Static-plan overlay
An optional compact window keeps pre-game choices visible. Live performance never selects or reorders advice.
No game control
No injection, memory reading, automated picks, bans, pings, purchases, movement, chat, or abilities.
Honest spectator mode
Delayed rosters are labelled as spectator data. Missing lane assignments remain clearly marked as inferred.
No bundled secrets
No Riot API key, Discord bot token, server password, or private stream token is included in the executable.
Between-match reminders
Optional water, movement, meal and personal-routine prompts stay on this device. Anything due during play waits until the match has ended; several due checks are assembled locally and played as one complete recording.
Open the routine plannerFeature status, not a competitor checklist
Every capability must match this product's Riot record
Features advertised by another League app show what may be possible for that audited product. They do not grant VRC.LOL the same scope automatically.
Available now
Local account and client-state recognition, visible champion select, queue-aware static builds, skill references, a fixed in-game overlay, factual player-visible match state and private post-match review.
Proposed for Riot audit
An opt-in Preview, Confirm and Apply flow for runes and summoner spells during champion select only. The player would see every change and active play would disable it.
Not claimed yet
Tier-average comparisons, live gold-difference analysis and live item-problem detection are not current Companion features. Their data source, user flow and integrity boundary would need separate review.
Intentionally excluded
No enemy ultimate or spell cooldown tracker, hidden-player resolution, automatic live purchase selection, win chance, unofficial MMR, game actions or instructions generated from changing live performance.
Current build remains read-only. A proposed feature is not silently enabled, described as available, or treated as approved before the product record and implementation agree.
Setup and updates
Keep your setup or begin again
Updates verify the replacement first, then let you preserve local preferences or rerun welcome setup. Window recovery is always available separately.
- 1Keep my settingsThe recommended update choice preserves scale, theme, favourites, shortcuts, overlay and reminders.
- 2Start freshWelcome setup runs again. Encrypted account-separated match history is deliberately kept.
- 3Start fresh + recover windowRuns welcome setup and safely resets placement on every startup until disabled. Ctrl + Alt + Shift + Home remains available.
Tester recovery
If the preview will not open
The existing executable remains untouched whenever an update cannot be downloaded or verified.
- 1Check the connection
Open this page in a browser. If it loads, retry the app once.
- 2Verify the file
Run the PowerShell command above and compare the complete SHA-256 value.
- 3Copy the diagnostic summary
Open Window and interface, find Private testing, then select Copy diagnostics. Paste the copied text into the bug report; the app does not send it automatically.
Useful bug report
Include enough context to reproduce it
- What you were doingFor example: champion select, switching Riot accounts, spectating, or opening History.
- What you expectedSay what should have appeared, moved, opened, or remained unchanged.
- Copied diagnosticsBuild, client phase, queue, map, role, patch and state flags help identify the correct code path.
- A focused screenshotCrop unrelated windows and hide names or chat when they are not needed to explain the layout problem.
Common questions
Before you test the Companion
Clear answers about access, local data, displays, Windows warnings and the update channel.
1Is the League Companion free?
Yes. The League Companion is free and is intended to remain free. There are no paid tiers, premium feature gates, advertisements, promotional pop-ups, or advertising and behavioural-tracking SDKs. Invitation codes only limit access to the current private test; they are not a purchase or subscription.
2Does the Companion control League of Legends?
No. It does not inject into the game, read process memory, automate actions, press keys, move the cursor, buy items, send chat, place pings, or choose champions.
3Can the Companion apply runes and summoner spells?
Not in the current invited build. VRC.LOL is preparing an opt-in champion-select flow that would preview a complete page, require the player to confirm it, and stop before active play. Because that changes the product from read-only to a limited League Client write, it will not be enabled until the feature is accurately disclosed for Riot audit.
4Why not copy every feature advertised by another League app?
Riot audits products and material feature changes individually. Another app advertising a feature does not transfer its approval, implementation details, or data permissions to VRC.LOL. The current build therefore includes only the behavior described for this product and excludes enemy cooldown tracking and automatic live coaching.
5Where does match history stay?
Eligible match reviews stay on the Windows PC and can span game patches. Histories are encrypted for the Windows account and separated by Riot account.
6Do I need a second monitor?
No. A second monitor is convenient, but optional. The Companion can use any detected display and includes a compact overlay for Borderless or Windowed League.
7Why can Windows SmartScreen show a warning?
The current preview is not Authenticode signed. Invited testers should download only from VRC.LOL and compare the complete SHA-256 checksum shown on this page.
8What happens when an update fails?
The existing executable is kept intact. A replacement is only applied after the guarded release channel, file size, and SHA-256 checksum have been verified.
9Can I keep my settings after an update?
Yes. Keep my settings is selected by default. Start fresh reruns welcome setup and resets preferences, while account-separated encrypted match history remains untouched.
10How do I recover a missing Companion window?
Use the notification-area menu or press Ctrl + Alt + Shift + Home while the Companion is running. An optional setting can repeat safe primary-display placement on every startup until disabled.
11Does the app contain a Riot API key?
No. The executable contains no Riot API key, Discord bot token, server password, or private stream credential.
12What does “local” mean here?
The League and game clients expose HTTPS services on the loopback address 127.0.0.1. That address points back to the same PC. The Companion reads those local services; the League lockfile password is used only for authenticated loopback requests and is never sent to VRC.LOL or shown to the web interface.
13Can VRC.LOL guarantee Riot will never object to the Companion?
No third party can make that guarantee. Riot requires products using League Client interfaces to be registered and audited, and describes the League Client API as unsupported and subject to change. The preview is deliberately read-only, discloses its interfaces, avoids hidden information and automation, and remains a limited test while Riot review is pending.
14What is included in Copy diagnostics?
The copied summary contains the Companion build, League connection and phase, queue, mode, map, assigned role, patch, spectator and custom-game flags, local history count, stream-publishing state, and check time. It omits player names, Riot IDs, match details, file paths, access codes, and credentials.
Preview access
Private testing, direct from VRC.LOL
Invitation codes create short-lived, single-use downloads. Required updates verify size and SHA-256 before replacing the executable, then offer to keep the existing setup or start welcome setup again.