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Free Marketing Tools for Reddit and Startup Growth

67 free marketing tools and 43 guides for founders, grouped by the job you are trying to do: find the right subreddits, write the post, keep your account safe, and measure what happened. Every tool runs in the browser with no signup.

Not sure where to start? The table below maps 10 common situations to the right tool, and the 4-step starter flow takes you from zero to a first post that survives the mods.

Decision helper

Which Free Tool Do I Need?

Find your situation in the left column. Start with the first tool, use the second if the first one answers only half the question.

Your situationStart hereWhat you get
I don't know which subreddits to post inShortlist 3-5 communities, then compare them side by side.
I have a subreddit in mind but I'm not sure it fitsCheck activity, rules and self-promo tolerance before you write.
My account is new or low on karmaSee the thresholds you need to clear, and how long it takes.
I need a first draftGenerate, then score and rewrite the title.
I have a draft and I'm afraid it gets removedGet a rule-by-rule verdict and an AutoMod removal estimate.
My draft sounds like ChatGPT wrote itFix the flagged phrases, then read it out loud once.
My posts get zero views or commentsRule out a shadowban or a low trust score before you change the content.
I want threads to reply to, not posts to writeFind live threads, draft a reply, rewrite it in your voice.
I posted and want to know if it workedCompare your numbers against subreddit-size benchmarks.
I'm not sure Reddit is the right channel at allPick one channel first, then come back for the tools.

Job 1: pick where to post

Find the Right Subreddits and Topics

Start here if you do not know where your buyers hang out on Reddit, or what they want to read about.

Find My Subreddits

Describe your product, get 12 matched subreddits with self-promo ratings, posting times and a fit score.

Try it free

Subreddits Analyzer

Free subreddit stats: hourly heatmap, Power Score, 5 best posting times.

Try it free

Subreddit Comparison

Compare 2-3 subreddits side by side. See subscribers, activity, rules, and get a recommendation on where to post.

Try it free

Subreddit Posting Requirements

See real minimum karma and account age requirements pulled from live tracked subreddits. Search, filter, and sort the full dataset.

Try it free

Reddit Opportunity Finder

Find live Reddit threads where people are asking about your product right now. Ranked by recency and engagement so you reply where it counts.

Try it free

Reddit Keyword Research

Get 20 long-tail keywords Reddit ranks for in Google, with intent, best subreddit, and content angle for each.

Try it free

Reddit Trends

Free Reddit trend feed by niche plus how to find the fastest-growing subreddits, Reddit Pro Trends vs free methods, and a 5-minute daily routine.

Try it free

Reddit Content Idea Generator

Get AI-powered post ideas tailored to your niche and target subreddits. Each idea includes a title, post type, and engagement potential rating.

Try it free

Customer Persona Generator

Generate 3 detailed buyer personas with pain points, goals, objections, and where to find them online including Reddit communities.

Try it free

Best Time to Post Calculator

Find the best time to post on Reddit based on your subreddit category and timezone. Visual heatmap with top posting slots.

Try it free

Reddit Marketing Strategy Generator

Get a personalized Reddit marketing strategy with subreddit recommendations, content calendar, and actionable tips. AI-powered and free.

Try it free

Reddit Marketing Plan Generator

Get a free 7-day Reddit marketing plan for your product. Subreddit recommendations, posting schedule, and daily tasks.

Try it free

Job 2: write it

Write Posts, Titles and Comments

Draft the post, sharpen the title, format it, and check it does not read like a template before it goes live.

Popular

Reddit Post Generator

12 copy-paste Reddit post templates (blank and filled) plus a free AI post generator. No login.

Try it free

Reddit Comment Generator

3 ready Reddit comments from 12 templates in 4 tones, with an optional product mention, plus a comment karma plan.

Try it free

Reddit Reply Generator

Generate contextual, authentic Reddit replies from any post or comment. Choose your goal and tone for 3 reply variations instantly.

Try it free

Post Title Analyzer

Score your post title before publishing. Get instant feedback on power words, emotional triggers, and smart rewrite suggestions.

Try it free

Hook Generator

Generate attention-grabbing opening lines for Reddit, LinkedIn, Twitter, emails, and more. Stop the scroll with proven viral formulas.

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Reddit Post Formatter

Reddit formatting tool with live markdown preview, cheat sheet for spoilers, quotes, code blocks and tables.

Try it free

Reddit Character Counter

Count characters, words, and paragraphs with Reddit-specific limits. Color-coded progress bars for titles, posts, and comments.

Try it free

Reddit AI Post Checker

Paste a Reddit draft and get an AI-slop score in seconds. Flags em dashes, buzzwords, and robotic cadence, then shows how to make it read human.

Try it free

Reddit Post Analyzer

Analyze why your Reddit post succeeded or failed. Get scores on title, body, subreddit fit, and viral potential with actionable improvement tips.

Try it free

Reddit Username Generator

8 free Reddit username ideas in 5 styles, all inside Reddit's 3 to 20 character rule, plus whether you can change your name later.

Try it free

Social Media Bio Generator

3 AI bios per run for Instagram, X, LinkedIn, TikTok, Reddit, GitHub and YouTube, sized to each platform's 2026 character limit.

Try it free

After the free tools

What Founders Saw Once Reddit Clicked

The free tools cover one step at a time. These founders ran the whole loop with MediaFast and posted what happened.

Beyond the free tools

Turn Reddit into a steady traffic channel for your product

The free tools each answer one question. MediaFast runs the whole loop: which subreddits, which posts, which threads, every day, all inside the rules. Run it yourself, or have us run it for you.

STEP 1Find the right subredditsSubreddit Picker hand-picks communities from 4,200+ subs where your buyers ask for products like yours.
STEP 2Write posts that stay upPost Generator drafts rule-aware posts, and Comment Finder surfaces the best threads to reply under.
STEP 3Keep the account safeBan-Safe Playbook and a Daily Action Plan tell you what to post, where and when, without tripping filters.
Most founders start here
MediaFast, do it yourselfThe software that plans and drafts your Reddit marketing.
$39a month, or $129 once for lifetime
  • Subreddit Picker from 4,200+ subs
  • Rule-aware Post Generator
  • Ban-Safe Playbook + Daily Action Plan
  • Unlimited projects
Refund if we can't help you market on Reddit
Done for you
Reddit Marketing, Done For YouWe run your Reddit marketing, you build the product.
$499a month
  • We post and comment for you to drive traffic
  • Premium ghostwriting included
  • We manage 1 Reddit account
Monthly, starts with a quick DM
Pro
Reddit Growth, Done For YouReddit as your #1 traffic channel, at scale.
$1,999a month
  • 4-5 warmed-up Reddit accounts working at once
  • We seed your product in the threads buyers read
  • Weekly and monthly traffic reports
  • 200k+ impressions or you don't pay
Monthly, starts with a quick DM

Not sure which one fits? Compare every plan side by side further down this page.

Job 3: stay unbanned

Keep Your Account and Posts Safe

Most removed posts trip a rule or an account threshold, not a human. Check the rules, your account and your draft before you post.

Subreddit Rules Checker

Paste your draft. Get a rule-by-rule pass/fail for any subreddit before you hit post, so you stop getting silently removed.

Try it free

Reddit AutoMod Simulator

Predict if AutoMod will remove your post. Get a 0-100 removal probability, trigger list, and a safe rewrite, before you publish.

Try it free

Reddit Shadowban Detector

Check any Reddit username for a shadowban through the official API, then decode the result.

Try it free

Reddit CQS Checker

Estimate your Reddit Contributor Quality Score tier from any username, see what CQS means, the 5 tiers, and 9 ways to raise it.

Try it free

Reddit Account Age Checker

Check how old any Reddit account is, view full karma breakdown, and find out if it meets subreddit posting requirements instantly.

Try it free

Reddit Karma Calculator

See exactly how fast your Reddit karma will grow and when you will hit key milestones. Plan your marketing timeline with real projections.

Try it free

Reddit Profile Analyzer

Paste any username to see karma, account age, top 8 subreddits, active hours and a 0-100 readiness score for posting promos. Free, no login.

Try it free

Reddit Account Roast

Get an AI roast of any Reddit account based on real karma, account age, and posting history, plus an A to F grade.

Try it free

Reddit Cake Day Checker

Look up any Reddit account's cake day, account age, karma breakdown, and days until next cake day. Free, instant.

Try it free

Reddit Username Checker

Instantly check if a Reddit username is available. Bulk-check multiple handles and see account stats for any taken username.

Try it free

Reddit Account Value Calculator

Find out how much your Reddit account is worth. Factors in karma, account age, trophies, activity diversity, and trust signals for an instant estimate.

Try it free

Reddit Ban Appeal Generator

Write a calm Reddit ban appeal under 200 words for subreddit bans, suspensions or shadowbans, see 6 before/after examples, and get the right appeal link.

Try it free

Job 4: measure and listen

Measure Results and Monitor Mentions

Score what you posted, read the real vote counts, and set up listening for your brand, keywords and competitors.

Reddit Engagement Calculator

Measure your Reddit post engagement rate, comment ratio, viral score, and performance tier. Compare against benchmarks by subreddit size.

Try it free

Reddit Upvote Calculator

Turn any Reddit score and upvote % into real upvotes and downvotes, get the ratio from raw counts, and see the score you need to beat a post on Hot.

Try it free

Reddit Sentiment Analyzer

Analyze the sentiment of Reddit comments and threads. Get positive, negative, and neutral breakdowns with key themes and actionable insights.

Try it free

Reddit Ad Cost Calculator

Estimate your Reddit advertising costs, CPC, CPM, ROAS, and compare paid ads vs organic Reddit marketing. Know your numbers before spending.

Try it free

Reddit Monitoring Tool

Track subreddits, keywords, and threads in real time, then see exactly where and what to comment. Not just alerts, the next action too.

Try it free

Reddit Monitoring Tools (11 Compared)

11 Reddit monitoring tools compared, from free F5Bot alerts to brand listening suites, plus a 5-step keyword alert setup.

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Reddit Alerts: Slack, Email, Webhook

Pick the right alert channel for your team. 12 setup guides covering keyword, mention, competitor, and subreddit alerts with real tool comparisons.

Try it free

Reddit Competitor Tracking

Watch competitor mentions, subreddit shifts, and pricing complaints on Reddit. 8 signals to track plus a free starter stack.

Try it free

Reddit Social Listening for SaaS

Find B2B buyers on Reddit before competitors do. A sourced Buska, Brand24, and MediaFast comparison plus a step-by-step listening workflow.

Try it free

Starter flow

Your First Reddit Post in 4 Free Tools

The order matters. Most removed posts skip step 2 or step 4.

  1. 1Find: Find My SubredditsDescribe your product and get a shortlist of communities with self-promo tolerance for each.Open tool
  2. 2Qualify: Subreddit Posting RequirementsCheck the karma and account-age bars your account has to clear in each one.Open tool
  3. 3Write: Reddit Post GeneratorGenerate a draft in the format that subreddit rewards, then add your own numbers.Open tool
  4. 4Check: Subreddit Rules CheckerRun the draft against the subreddit's rules before you submit.Open tool

Running these four by hand works, it just repeats every week for every subreddit. If you would rather have that loop run for you, MediaFast finds the subreddits, checks their rules, drafts posts for you to approve and flags threads worth replying to. You still write your own comments.

Beyond Reddit

Launch, Pitch and Sell on Other Channels

LinkedIn, cold email, ads, positioning and launch prep, for the work that happens around your Reddit posts.

LinkedIn Post Generator

Create professional, viral-ready LinkedIn posts in seconds. Perfect for building your personal brand.

Try it free

LinkedIn Scheduler

Write LinkedIn posts with AI and plan your week. Free to generate, no signup, with guidance on when scheduling beats posting live.

Try it free

Cold Email Generator

Free AI cold email generator: subject line and email in seconds, plus 4 templates, a follow-up schedule and 2026 Gmail and Yahoo sender rules.

Try it free

Ad Copy Generator

Write ad copy for Reddit, LinkedIn, Meta, and Google in one tool. Headlines, primary text, and CTAs that respect each platform's character limits.

Try it free

Value Proposition Generator

Turn what you do into a sharp value proposition using 5 proven frameworks. Built for founders nailing positioning before they go to market.

Try it free

Elevator Pitch Generator

Generate a sharp 30, 60, or 90 second startup pitch in seconds. Pick your audience and tone, get investor and customer ready variants.

Try it free

Business Name Generator

Generate unique, memorable business names with AI. Choose your industry, style, and keywords for instant brand name ideas with taglines.

Try it free

AI Landing Page Roaster

Roast your landing page in 60 seconds: a blunt AI VC lists red flags and fixes, plus 2026 conversion benchmarks by traffic source.

Try it free

Pricing Page Analyzer

Audit your SaaS pricing page against 10+ conversion checks. Get scored feedback on tier structure, anchoring, CTAs, and pricing psychology.

Try it free

Privacy Policy Generator

Generate a comprehensive, GDPR and CCPA compliant privacy policy for your website or SaaS product in seconds.

Try it free

Pitch Deck Generator

Create an investor-ready 12-slide pitch deck outline. Built from frameworks used by YC-backed startups.

Try it free

Startup Launch Checklist Generator

Get a prioritized launch checklist with 28+ steps across pre-launch, launch day, and post-launch, tuned to your product and budget.

Try it free

Startup Idea Validator

Get brutally honest AI feedback on your startup idea. Scores for market potential, competition, monetization, and actionable next steps.

Try it free

Know your numbers

Founder Calculators for Growth Metrics

Run these in the browser before you decide how much time or money to put into any channel.

Playbooks and answers

Guides That Go With the Tools

Long-form playbooks, comparisons and founder questions answered with sourced numbers.

Reddit marketing guides

21 guides

Startup growth guides

22 guides

Why these are free

Free Tools Bring Traffic. Traffic Becomes Customers.

Every tool on this page solves one real problem for founders and marketers. Helping people for free is the foundation of organic growth, ours included.

67 free tools, no signup

Generate posts, analyze subreddits, check for shadowbans, calculate metrics and more. No trial periods and no account. AI tools are rate-limited per visitor only to stop abuse.

Built for founders, not writers

These are not generic content tools. Every generator, analyzer and calculator is built for startup founders and marketers who need results, not just words.

From one tool to a full loop

Start with a free tool and see the value. When you want the find, check, draft and schedule loop running every week, that is what the paid plan does.

Reddit marketing tool pricing

Your customers are already on Reddit. Go get them.

They are asking for a product like yours on Reddit right now. The only question is whether they find you or your competitor.

MediaFastBEST VALUE

MediaFast Lifetime

Reddit marketing that keeps your account alive. Every tool included, forever.
One payment, yours forever
$129one time
Lifetime access Free updates Refund guarantee
OmriShivKevinJoshua
"Just bought lifetime access."Kevin @kevinyun
Pay once. No subscription, no renewals.
  • Does it post for me? We write it, you hit publish, because Reddit bans fully automated posting.
  • How long a day? Ten minutes.
  • No Reddit account? We walk you through creating one and warming it up safely.

What's included:

  • Ban-Safe Playbook: rule-checked plan that keeps your account alive
  • Daily Action Plan: what to post and when
  • Subreddit Picker: hand-picked from 4,200+ subs
  • Post Generator: rule-aware drafts in one click
  • Comment Finder: best threads to reply under
  • Founder Community: chat with founders growing on Reddit
  • Mention Tracking: see when Reddit starts talking about you
  • Unlimited projects: for your whole portfolio
  • Team seats: add teammates and VAs
  • Unlimited Roadmaps: generate as many as you need
  • Future Updates: every new feature, free
  • One Payment: no subscription, no renewals
  • Priority Support: 1-on-1 help when stuck
  • Founder Onboarding: kickoff strategy call
  • Early Access: new features before anyone else

If we can't help you market on Reddit, we'll refund you. No questions asked.

Free Marketing Tools FAQ

Costs, accounts, AI output and where to start.

Yes. Every tool on this page is free to use with no signup required. AI-powered tools are rate-limited per visitor to prevent abuse, so if you hit the limit, wait a minute and try again. MediaFast's paid plan is separate: it runs subreddit discovery, rule checks, drafting and scheduling for you every week.

If Reddit is new to you, start with Find My Subreddits to shortlist communities, then Subreddit Posting Requirements to see whether your account qualifies, then the Reddit Post Generator for a first draft, and finally the Subreddit Rules Checker before you post. The 'which tool do I need' table on this page maps 10 common situations to the right starting tool.

They are built for founders marketing on Reddit and LinkedIn, not generic content writing. The Reddit tools are organized around the problems that sink most posts: wrong subreddit, account below the posting threshold, rule violations, and drafts that read as ads or AI. Several tools read live public Reddit data, like subreddit rules, account age and karma.

No account is required for any free tool. Open the page and start. Tools that check a Reddit account only need a public username, never your Reddit password.

You provide inputs like your topic, tone, product URL or target subreddit. The tool sends them to a large language model with instructions written around Reddit and LinkedIn norms, and returns a draft, score or list in seconds. Treat every AI output as a first draft: add your own experience and numbers before you publish.

The tools themselves do not post anything or touch your account, so using them carries no risk. What gets accounts banned is how you post: the same link across many subreddits, heavy self-promotion, or ignoring a community's rules. The tools in the 'stay unbanned' group exist to catch those problems before you post.

The free tools each do one job, one time, when you run them. MediaFast connects the jobs: it finds subreddits that fit your product, checks their rules, drafts posts you edit and approve, schedules them, and flags threads worth replying to. You still write your comments yourself.

Marketing Guides

The full loop

Run Every Tool on This Page, Every Week, Without Doing It by Hand

MediaFast finds your subreddits, checks their rules, drafts posts you approve, schedules them and flags threads worth replying to.

No time to do Reddit yourself?