How to Write Bulk Replace Rules
This bulk find and replace tool represents each rule as a From and To field side by side, no special syntax or delimiter to remember, just type what to find on the left and its replacement on the right, then click Add rule for another row. Rules apply in order from top to bottom against the running result of every rule before it, not all against the original text independently, so a later rule can match text a previous rule just introduced, which is sometimes exactly what you want and sometimes a subtle source of unexpected output if rule order isn't deliberate.
How to Use This Bulk Find and Replace Tool
Each rule is a From and To field side by side, type the text to find on the left and its replacement on the right, then click Add rule to append as many more as you need. Paste the text to transform into Input text. Toggle Enable regex rules to treat each From value as a regular expression instead of literal text, this find and replace regex tool also accepts full /pattern/flags syntax like /\bHTTP\b/gi directly in the From field. Turn on Case-insensitive matching or Match whole words only as needed, or check Dry run to see exactly how many matches each rule would produce without actually changing the output, useful for testing a risky rule before committing to it. Click Run, then review the per-rule match counts below the result before copying or downloading.
Plain Text vs Regex Rules
With regex rules off, every character in a find pattern is escaped automatically and matched literally, so periods, parentheses, and other regex-special characters in your find text are treated as plain characters, not regex syntax, the safe default for straightforward text replacement. With regex rules on, this becomes a full find and replace regex tool: patterns are compiled as real regular expressions, letting you match variable text, character classes, or repetition that literal text search can't express.
| Mode | Find Syntax | Best For |
|---|---|---|
| Plain text (regex off) | Literal characters, auto-escaped | Straightforward word or phrase replacement |
| Regex (regex on) | Full regular expression, or /pattern/flags | Variable text, character classes, pattern-based matches |
Common Mistakes With Bulk Replace Rules
The most common mistake going the other direction: leaving regex rules enabled while typing what you meant as plain text, a find value containing a period, parenthesis, or other regex-special character will behave differently than expected once regex mode is on, since those characters carry special meaning in a real pattern instead of matching themselves. A second, easy-to-miss issue: rule order matters, since each rule operates on the result of every rule before it, not the original text, a later rule can unintentionally match text a previous rule just inserted. A third: expecting whole-word matching to work across multi-word phrases the way it works for single words, it wraps the entire find pattern in a word boundary on each end, which behaves correctly for a single word or an exact multi-word phrase, but won't partially match only some words within a longer phrase.