Free Tools
Growth Tools for SaaS Founders
Free, no-signup-needed tools to find customers, write better DMs, avoid Reddit bans, and ship to every platform. Built by the team behind OneUp Today.
Reddit + DM toolkit
NewReddit Lead Finder
Enter your keywords and target subreddits, get real recent Reddit posts from people asking for a product like yours, ranked by buyer intent. A free taste of OneUp's core lead engine.
AI Subreddit Recommender
Describe your product, get the subreddits where your buyers actually gather, validated against Reddit and ranked by size. Then jump straight to finding leads in them.
Reddit vs Cold Email ROI Calculator
Compare cost per customer across Reddit DMs, cold email, and paid ads. Plug in your funnel and see which channel is actually cheapest for your numbers.
Multi-Platform Post Preview
Paste your post and image, see live mockups across all 9 platforms. X (with tier toggle), LinkedIn, Reddit, Instagram, Threads, Facebook, TikTok, YouTube, Pinterest. Catches truncation, hashtag styling, image crops, and link cards before you publish.
Cold DM Template Library
15+ proven cold DM templates for Reddit, X, and LinkedIn. Filter by platform, industry, ICP, and value prop. Copy ready-to-personalize messages with reply-rate estimates.
Reddit Shadowban Checker
Enter a username, get a 0-100 account health score, signal breakdown, and a recovery checklist. Detects shadowbans, low-karma flags, single-sub spam patterns.
Reddit Self-Promotion Rules Checker
Can you promote in r/X? Look up any of 49 communities to see its self-promotion policy, plus the 9-to-1 rule and a playbook for promoting on Reddit without getting banned.
Subreddit Finder for Your SaaS
50 curated subreddits ranked by self-promo tolerance, industry, and ICP. Filter by what you sell, find where your customers hang out.
Cold DM Generator
Enter the prospect's pain and your product, get three personalized cold DM drafts for Reddit, X, or LinkedIn. Value-first, question-first, and peer angles to edit and send.
Best Time to Post on Reddit
Recommended Reddit posting windows converted to your timezone and split by goal: maximum reach, B2B subreddits, or comments and discussion.
UTM Campaign Link Builder
Build trackable campaign URLs for Google Analytics in seconds. Presets for Reddit, X, LinkedIn, and email, plus a plain-English guide to each parameter.
Other tools
Places to Publish Your Startup
Discover directories, forums, and platforms to promote your startup.
App Screenshot Generator
Create professional app screenshots with device frames, text overlays, and backgrounds.
Social Media Image Resizer
Resize images for Instagram, X, Facebook, LinkedIn, Pinterest, YouTube, and TikTok in one click.
Image Compressor
Compress PNG, JPEG, and WebP images. Reduce file size while keeping quality. Batch with ZIP download.
Meme Generator
Create memes with 15 popular templates or your own images.
Video to GIF Converter
Convert MP4, WebM, or MOV videos to animated GIFs. Trim, set FPS, choose resolution.
WhatsApp Chat Video Generator
Create custom WhatsApp conversation videos.
BMI Calculator
Calculate BMI with metric / imperial conversion and a health-feedback scale.