Tools & Platforms

Saga20 Free Tools is a set of small utilities for D&D and TTRPGs, each built to clear one specific bottleneck at the table. Nothing asks for a login, nothing runs ads, and each one loads as its own page. The dice roller handles a d20 with advantage or disadvantage, applies the modifier, and rolls damage in the same click, with the full set from d4 to d100 and a typed input for things like 1d20 + 2d6. The Magic Item Price Calculator gives a fair gold value for any 5e item from its rarity and category, and shows the valid market range so a generous DM does not accidentally break the campaign economy. The Point Buy Calculator builds ability scores using point buy, the standard array, or rolled stats, with live modifiers under both the 2014 and 2024 rules. The rest follow the shape of a campaign. Before the first session, an agreement builder covers logistics, safety tools, and house rules, then exports to PDF, and a party connection generator ties the characters' backstories to each other. Mid-game there is a time manager for pacing and a wild magic surge table with 100 original effects. Afterwards the recap generator turns the night's highlights into cards worth sharing. There is also a shopkeeper generator, a magic item picker, and a party composition analyzer that says out loud whether anyone remembered to bring a healer. Best for any table wanting a quick tool or answer mid-session without making an account first.

Nat20.cloud is a free virtual tabletop for running and archiving your RPG campaigns. Play D&D 5e or Pathfinder 2e, build your own homebrew system, and run sessions online with combat tracker, battle maps, dice, notes, and rules reference, or use it solo as a GM screen.

D-Roller is a free online dice roller built around a real rigid-body physics engine rather than a random number generator. Every throw is simulated — sequential impulses at a fixed 360Hz, full collision between dice, friction and restitution — and the result is read off the geometry of whichever face ends up pointing at the ceiling. Nothing is drawn in advance and nothing can produce a number without the dice actually being thrown. It carries the full polyhedral set — D4, D6, D8, D10, D12 and D20 — and up to twenty dice on the table at once in any mix, so an attack and its damage are one throw rather than two. It also reads a roll the way a table does. Two D20 are shown side by side and never added, because two twenties are advantage or disadvantage and no such total exists; a D20 thrown beside damage dice keeps the attack as the headline and the damage underneath; and a D10 that lands on 0 counts as ten, the way the printing on a real one means. Five die finishes, seven table surfaces, impact sound, and a stage the player can relight. No account, no download, no advertising in the roller. It runs in the browser, on a phone as well as a desktop. Links d-roller.com - Official website

Rollful is a hosted dice-rolling API. It rolls dice over HTTP: a request carries a formula, and Rollful parses it, rolls each die through a cryptographically secure generator, and returns every die it rolled rather than only the total. It is not tied to any game system. It knows what 4d6kh3 means and nothing about what the caller uses it for, so it suits a virtual tabletop, a character sheet, a Discord bot, or anything else that needs a roll it can show the working for. The formula grammar covers flat modifiers, advantage and disadvantage, keeping the highest or lowest dice, exploding and penetrating dice, multipliers, several terms in one roll, and tags. The response lists every die with a flag saying which ones counted, so an interface can show the die a keep rule dropped instead of hiding it. A GET request handles a plain formula. POST adds bonuses and tags, and a batch endpoint takes up to 20 rolls in one request. Every response and error has the same documented shape, described by an OpenAPI 3.1 document. There is no account and no API key. Usage is rate limited rather than metered. The homepage carries a form for rolling dice straight from the browser. Rollful is powered by the OpenDice npm package, which is free to use directly in any JavaScript or TypeScript project.

GhoulApp is a free digital companion for Vampire: The Masquerade that helps players and Storytellers create characters, manage chronicles and run live sessions. Supporting V5, V20 and Dark Ages, it includes character creation, interactive character sheets, complete chronicle management, maps and relationship boards, integrated wiki and timeline tools, edition-specific dice rolling and community sharing features. Designed specifically for the World of Darkness, GhoulApp brings every part of a chronicle together in a single platform used by thousands of players worldwide. Links ghoulapp.com - Official website discord.gg - Discord server patreon.com - Support the project

TAS is a multi tool application for Mongoose Traveller 2E, that provides several options for players, GMs, and solo players. The Travellers app is designed to allow for guided or random character creation, rolling your own dice or letting the app roll them.  You can also track multiple characters across sub tabs, update their stats, add items and then save them, and share them with direct sharing links. They Shipyard app allows you to open and modify several classic Traveller ships, or design your own from scratch.  Save and export your ships as desired. The NPC Vault is a stripped down automated NPC creator that allows GMs to quickly create NPCs across different career archetypes, tech levels and experience levels, as well as mix archetypes.  Edit, save and export the NPCs as needed. /images/general-media/1786113792_7ncg53gt.webp   The Voidmapper tool shows you the 8x10 hex map. It lets you automatically generate a single world hex at random, a single sub sector or several sub sectors, or you can import the cannon sectors from travellermap.com.  Once you have imported your sectors, you can import ships from the Shipyard and add Characters from Travellers to that ship.  Each sector has the full trade and passenger information based on the system rules.  You can give your ship credits, track your in game trades, and passengers if your table wants to automate finding trade goods, and passengers and tracking what is on your ship and how much you spend and make.  You can also use this as a mini game to travel a system trading and trying to earn a profit.  Lastly each system has a savable notes section, random tables for encounters and details about the secondary worlds. /images/general-media/1786113857_yrNMc5pe.webp Lastly check the Ops Menu for the readme for each section for more detailed information and the up to date change log. Links tas.leweber.org - Official website

DiceFlex is a free, browser based dice roller built for tabletop RPG groups that want more than a generic dice tray. Currently it supports 18 game systems and adapts its interface and rolling rules to the selected game, including system specific mechanics such as advantage and disadvantage, degrees of success, bonus and penalty dice, dice chains, Wild Dice, Fate/Fudge dice and narrative dice. Built for fast use during live sessions, DiceFlex lets players choose a game system, use common quick rolls, build custom dice pools, enter natural language roll commands, save presets and review recent roll history. Results are presented clearly and can be copied easily into Discord, chat or other session tools. Live Rooms allow an entire group to roll together in real time using a shared room code or persistent link. Players can see table activity as it happens, while GMs have access to features such as private GM rolls. DiceFlex also provides a Discord bot using the same system aware rolling engine. DiceFlex is designed for GMs and players who want fast, readable and rules aware dice rolling across a wide range of tabletop RPG systems, with no account required and no setup needed.