berel.me
A growing collection of free, single-purpose web tools for shluchim at berel.me: raffles, labels, luach, sicha tools, Hebrew-date conversion and more, most of them vibe-coded and run in the browser.
On this page
berel.me is one member's collection of small web tools, each at its own address (berel.me/raffle, berel.me/crop and so on). Each one does one job. Most need no account and keep your data in the browser. New ones often appear the same day a shliach asks for something in the chat.
The tools are free and built with AI, mostly Claude. The first batch, in December 2025, was made with Claude Opus 4.5; one early raffle tool was started with another model, came out buggy, and was fixed with Claude.
Every address below was opened on 2026-10-21. The App Store has fuller listings for berel.me and several of its tools.
For classes and events
| Tool | What it does |
|---|---|
| Raffle | Paste a participant list (straight from a spreadsheet), add a number after a name for extra tickets, and get a raffle drawing to share as a link. App Store page. |
| Dreidel | Swipe to spin a dreidel on your phone; built for a Chanukah raffle. |
| Pair My Class | Split a class into pairs or groups, with optional skill levels. The old address berel.me/splitmyclass forwards here. |
| Grogger | Shake the phone to make gragger noise during the Megillah. |
| When was the last time... | The Rebbe sometimes asked at a farbrengen "when was the last time...?"; this collects questions in that style sent in by chassidim, for a farbrengen or class. |
| OneMoreYid | A quick page of Jewish and Chabad resources to share with someone you just met. |
Learning
| Tool | What it does |
|---|---|
| Find a Sicha | Likkutei Sichos sorted by parsha and by length, so you can pick a short sicha for a quick shiur. |
| SichaStitch | Paste screenshots or a PDF of a sicha and stitch them into one clean image. |
| The Taste | A weekly luach that grays out what does not apply. A map shows where it is printed, and an auto-print installer prints it every week on Windows. |
| 12 Pesukim Helper | Walk through the 12 Pesukim one word at a time. App Store page. |
| Recited by | Every child who recited one of the 12 Pesukim at a children's rally with the Rebbe, 5737 to 5752, linked to the moment in the video. |
| Every Jew Is... | Times the Rebbe finished the sentence "every Jew is...", collected by hand. Marked unfinished. |
| Kiddush HaChodesh simulator | A sun-and-moon orbit model for learning Hilchos Kiddush HaChodesh. |
| Ma'ayan | 24/6 audio and video streams, such as a recorded davening with the Rebbe and niggunim from farbrengens; installs to the home screen. |
| JEM dual subtitles | Show two subtitle languages at once on a JEM video. App Store page. |
| Shaimos pile | A pile of learning notes you can shuffle and read at random. |
| Parsha letters | How many of each letter appear in every aliyah, made for a camp activity. |
| Gematria calculator | Gematria for one or two phrases, with a letter breakdown. |
| Judeo-English typing test | Type English words spelled in Yiddish letters, the way the old Yiddish papers did. |
Office and printing
| Tool | What it does |
|---|---|
| Label Studio | Design and print mailing labels with mail merge from CSV or Excel, Hebrew support and Avery presets; the list stays on your computer. |
| PDF labels | A simpler Avery label PDF maker. |
| Waiver Merge | Fill a PDF template from a spreadsheet, one PDF per row. App Store page. |
| Crop PDF | Trim PDF margins or change the page size, in the browser. |
| Donatext | Saved donation messages with fill-in fields, ready to paste. App Store page. |
| Davening papers | Printable Mincha and Maariv sheets for a camp or group. The page itself says the nusach has not been reviewed: check every sheet before you use it. |
| Ashreinu total time | A bookmarklet that adds missing total durations on ashreinu.app. |
Dates, zmanim and Shabbos
| Tool | What it does |
|---|---|
| Hebrew date converter | Paste a list of dates and convert them all at once, with a "past sunset?" option. |
| Our days | Upcoming Chabad yomei d'pagra, with a countdown to shkiah at your location. |
| Candle lighting display | A screen that shows this week's candle lighting time for your location. App Store page. |
| Shabbos lamp | Turns a phone into a bedside lamp and silent alarm for Shabbos. The page warns about the phone's sensors; ask your rav before using a phone this way on Shabbos. |
A countdown page in the same collection (berel.me/isitshabbosyet) had a time-zone bug that was caught the day it was posted in August 2026, and it now carries its own warning not to rely on it. Treat any time shown by a small tool as a draft and check it against a source you trust. See Zmanim and Hebrew Dates.
Other
- Nu?: an Android app that makes messages from one chosen person (a spouse, say) impossible to miss.
- Camera overlay: lays a faded image over the live camera view.
- Fully Clear Pushka: an experimental 3D pushka counter.
- berel.me/seforim and berel.me/sefarim forward to shared Google Drive folders of seforim PDFs.
Why it works
Each tool answers one request, runs in the browser, and stores nothing on a server. That keeps it inside the group's vibe-coding rules: no logins, no database of people, no payments. If a tool breaks or goes stale, nobody's data is at risk.
The trade-off is that one person maintains all of it. Some tools are marked beta or unfinished on their own pages, and a few older addresses now forward elsewhere. Earlier addresses that no longer work (as of 2026-10-21): berel.me/passover, berel.me/proclamations (now forwards to an outside page) and a birthday gag page.